Before he leaves his home in Venice, however, there is research to do for the voyage and new skills to acquire - not least gaining the respect of the crew of the White Swan, with whom he will spend the next few months in cramped quarters and sometimes dangerous situations as he visits the greatest treasures of the Mediterranean. Francesco also visits the Doge's Palace for reminders of the greatest age of Venice, when the city's empire stretched across the Mediterranean, and he marks the Festival of the Redentore, a fantastic night of Venetian celebrations and fireworks.

Francesco and the crew of the Black Swan hit the open sea and head down the Croatian coast. Next stop is Pula and the extraordinary amphitheatre, where fights to the death were regular Roman entertainment, as well as the Temple of Augustus and the great Arch of the Sergians. Next up is a stopover at the isolated lighthouse of Porer which has saved many a Venetian ship navigating these treacherous waters. And then to the beautiful city of Split where the astonishing palace of Diocletian - the oldest inhabited palace in the world.

Conditions at sea are turning rough as Francesco da Mosto continues his journey, sailing from Venice to Istanbul. The coastline is stunning but he cannot fail to notice the scars of war that followed the collapse of Yugoslavia. His first stop is the great Mostar bridge - an ancient symbol of unity destroyed in a moment of madness in war and now rebuilt. Once again the young men of the town take their lives in their hands and leap from the bridge to prove their manhood. Francesco travels to nearby Medugorje where the Virgin Mary appears to the villagers promising a new era of peace and prosperity. Then begins some island-hopping and reminders of Venice - the beautiful island of Hvar is like a home from home - so the crew enjoy their first night out on the town. Heading for Korcular, Francesco berates the locals for trying to claim it was birthplace of Marco Polo. Then on to the medieval city of Dubrovnik, a great trading city-state and still one of the most beautiful cities in the world. What better place for Francesco to discover the secret of eternal youth than in the great Franciscan monastery at the heart of the old town.

On the next step of his sea voyage from Venice to Istanbul, Francesco da Mosto is sailing into the Bay of Kotor where Venetian sailors knew they were leaving safe waters for the dangers of pirates and the ships of rival powers. So perhaps it's wise for Francesco and the crew to stop off at the magical little church of Santuario della madonna della scarpello, perched on a few rocks in the open sea. Here Venetian sailors prayed for a safe voyage or, if they were lucky, where they offered thanks to God for a safe return. Many Venetian ships came to grief here - if not through attack then they fell victim to the elements. Off the coast of Montenegro, Francesco dives to a shipwreck deep on the ocean bed. Next is Ulcinj - a pirate fortress town - where captives taken by pirates were held before being sold into slavery. Even today it has an air of menace. Francesco sees the original cells where Venetians unlucky enough to fall into the hands of the pirates were imprisoned. Next stop is Durres on the coast Albania - poor and facing an uncertain future after the all-too-recent rule of Communist dictator, Enver Hoxha. The capital city of Tirana is still the stuff of spies and Cold War intrigue but the colourful city Mayor is pinning his hopes to a dramatic make-over of the city.

Architect and historian Francesco da Mosto embarks on a journey across the Mediterranean sea. As Francesco and the crew of the Black Swan enter Greek waters, the boat is making the fastest headway since leaving Venice on the long voyage to Istanbul. But disaster strikes as the mainsail rips and they limp into the next port, the island of Corfu. Corfu has more relics of British rule than Venetian, and Francesco is soon drawn into a game of cricket on the island's best cricket pitch. In the romantic setting of the British Garden Cemetery there are many reminders of British occupation. And Corfu is the island setting of the hugely popular novel, My Family and Other Animals. Author Gerald Durrell is long since dead, but his good friend David Bellamy is there to point Francesco in the direction of the island's animal life. While the Black Swan puts in for repairs Francesco takes the ferry to the Greek coast and heads inland. His first stop is the surprising town of Ioninna - a little bit of Turkey in the middle of Greece. Once it was the stronghold of the evil Ali Pasha whose cruelty was the talk of Europe at the beginning of the 19th century. But peace and hope is restored as Francesco ascends the incredible mountain realm of Meteora - a sacred kingdom in the clouds. Here ancient monasteries perch perilously on the mountaintops with, seemingly, no way to get up to them. Inside are some of the least seen but most brilliant frescoes of the medieval age.

Architect and historian Francesco da Mosto embarks on a journey across the Mediterranean sea. Amidst a sea of dolphins, The Black Swan enters the Gulf of Corinth off the coast of Greece as Francesco continues his voyage from Venice to Istanbul. The boat must manoeuvre under the Rio Antirio bridge and then navigate the narrow Corinth Canal, which separates mainland Greece from the Peloponnese. At Mount Parnassus, Francesco visits the mystical site of the great Delphic Oracle, the greatest prophetess of the ancient world. She would talk in riddles but her pronouncements determined everything from events of state to romance and marriage. Mount Parnassus was also home to the Pythian games, forerunners of the modern Olympic Games. Next stop is Athens. Often dismissed as a busy, noisy and overcrowded city, the Greeks prefer to see Athens as the biggest village in the country. Athens was the capital of the ancient Classical world and home to the Acropolis. Birthplace of Western Art, it is also the site of one of Venice's greatest atrocities against art and culture - an attack on the sacred temple of Parthenon that almost destroyed it. The attack also resulted in a massive loss of human life. Francesco sees the damage from the 700 cannonballs, still evident today. Francesco also has a date in Athens - the woman with the greatest singing voice ever to emerge from Greece - Nana Mouskouri. As they stroll through the romantic setting of Athens' National Gardens, can Francesco persuade Nana to serenade him?

Architect and historian Francesco da Mosto embarks on a journey across the Mediterranean sea. The Black Swan docks near Athens - on route for Istanbul - so Francesco heads off alone on motorbike into the wild west of Greece, the Peloponnese. Here the people in the south have a reputation for, at best, unfriendliness, and it isn't long before Francesco runs into trouble with the locals. But there is plenty to marvel at. Mystra, the ruined Byzantine town, once known as 'the Florence of the East', the ancient theatre at Epidaurus where a stage-whisper can be heard throughout an auditorium seating thousands, a tiny cave-like church that boasts incredible frescoes, and Vathia - the abandoned town of towers where neighbour fought against neighbour to get the upper hand. Meanwhile, in the aptly named region of Arkadia, Francesco finds a sweet surprise - a field of beehives where the bees make the best honey in Greece and the biggest worry bead shop in Greece. At Methoni, he visits a great Venetian fortress at the sea's edge, the site of a massacre of his ancestors at the hands of the Ottoman empire.

Francesco da Mosto continues his sea tour around the Mediterranean from Venice to Istanbul by visiting the magical, mystical Greek islands known as the Cyclades. First stop is the most sacred island of all, Delos, the birthplace of the god Apollo. Francesco encounters the lions of Delos and the great phalli of Dionysus. On Tinos, a place of miracle and pilgrimage, he meets a woman who crawls on her hands and knees for a kilometre uphill to give thanks to the Virgin Mary for the recovery of her sick husband. The island of Naxos was a key port for the Venetian empire and even the houses feel Italian - a home-from-home for the travel-weary Francesco, who enjoys the island's traditional and very strong liqueur. After a spot of octopus hunting, Francesco arrives at the great sunken, flooded volcano of Santorini which boasts a civilisation older than the Classical world and the best sunset in Greece.

Francesco da Mosto continues his sea tour around the Mediterranean. The stormy seas of the Cyclades take a turn for the worse as Francesco approaches Crete, the biggest of the Greek islands. As the storm passes, his first stop is the beautiful but abandoned island of Spinalonga - just off the coast of Crete. It is an island haunted by sadness and tragedy. Docking at Iraklion, capital of Crete, Francesco sets off for the deep underground caves where Zeus, king of the gods, is reputed to have been born. Just down the road lies the immense palace of Knossus - excavated by an Englishman - reputedly the home to King Minos and the legendary Minotaur. There, he tries his hand at the ancient Cretan art of pot-making. At the beautiful monastery of Arkadhi he stands in the very spot Cretan independence fighters blew themselves up with gunpowder rather than be captured. Their skulls, together with the remains of their enemies, are stacked on shelves in the monastery. Then a surprise for Francesco - an invitation to a Cretan wedding - but first he must help prepare the wedding feast. With 1,500 guests invited, the task is enormous: 150 sheep make up the main course alone. Francesco dances until dawn and the boat has left Crete before he even knows it.

Francesco da Mosto has been at sea for two months now as he travels from Venice to Istanbul. He approaches the last group of the Greek islands - the Dodecanese. Rhodes was home to the legendary crusader knights of St John. Over the centuries, it was repeatedly caught up in fighting between the Christian and Islamic worlds, and even today it has the feel of a fortress island. Next stop is the exotic Turquoise Coast. The coast is too shallow for the Black Swan to explore, so Francesco swaps boats and heads for the extraordinary Dalyan Tombs - great classical burial temples carved out of the high clifftops. They were deliberately carved high in the mountains so the spirits of the dead had less far to travel to heaven. On the way he encounters the huge loggerhead turtles of the region, which enjoy nothing more than crunching their way through the shells of giant crabs. One of the most unexpected islands of the area - and an uncomfortable reminder for Francesco of his country's recent past - is the island of Leros. Mussolini redesigned Leros as a launch pad for his dreams of a Fascist empire that would dominate the Mediterranean. He rebuilt the main town as a military town with wide straight boulevards for army parades. Next stop is Patmos, where St John the Divine is said to have experienced his revelations that make up the Book of Revelation in the Bible - foretelling the end of the world and the final struggle between God and Satan. The Cave of the Apocalypse on Patmos is said to be the actual site, and Francesco sees the crack in the roof of the cave out of which apparently the voice of God emerged. And, at last, a surprise for Francesco renders him speechless.

Francesco da Mosto reaches the outer limits of the old Venetian empire on his voyage from Venice to Istanbul. Now he enters Turkish waters, the Strait of the Dardanelles, gateway to the east. First stop are the haunting beaches of Gallipoli - scene of one of the worst massacres of the First World War. It was here that the Anzac forces of New Zealand and Australia were decimated as, alongside British troops, they tried to retake the Dardanelles. After the bumpiest of bus rides inland, Francesco arrives at the city of Edirne, which boasts Turkey's finest - and biggest - mosque. The incredible acoustics of the giant dome are demonstrated by a local imam with the biggest pair of lungs in town. In Edirne the most popular sport is wrestling. Naked, except for skin-tight leather trousers and covered in olive oil, the local wrestlers are giants of men. The sport is a severe trial of strength and the rules uncertain - it's even acceptable to put your hands down your opponent's trousers. Francesco is forced to give it a try. The White Swan embarks on its final lap to Istanbul. But one detour is irresistible - to Bursa, birthplace of the doner kebab.

Franceso da Mosto reaches Istanbul, the final stop of his marathon voyage from Venice following the trading routes of the Venetian empire. Istanbul straddles the Bosphorus as well as two continents. It has been home of both Christian and Islamic civilisations, and Francesco is eager to explore this great city. First stop is the Palace of Topkapi - centre of power for the Ottoman empire. Most haunting of all is the palace harem, a prison to the sultan's many concubines. Beneath the city is a vast network of underground tunnels dating back more than a thousand years. Donning hard hat and waders, Francesco enters one of the huge underground cisterns - looking more like a Roman emperor's palace than a water tank. Two giant heads of Medusa lie abandoned in the water. Istanbul's Grand Bazaar is one of the world's biggest undercover markets and Francesco has a mission in mind. He is going to learn how to sell a Turkish carpet. As he learns the secrets of the trade, he is shown one of the most expensive and beautiful carpets in the city. A visit to Istanbul would not be complete without the experience of a Turkish bath, however, so Francesco offers himself up for a vigorous soap and scrub. But soon it is time to say goodbye. A final celebration aboard the Black Swan with its long-suffering crew brings Francesco's journey to an end.