Cameras focus on Austria's stunning Transalpine railway, which crosses the snowy peaks of the Tirol. Our journey begins in the historic city of Graz and heads west through famous alpine beauty spots, including Zell am Zee, where the sounds of yodelling still echo across pristine mountain valleys. The final stretch passes through the 10.6- kilometre Arlberg Tunnel.

The latest train excursion includes a trip to Portugal's Quinta de Vargellas, a vineyard that has been making port for centuries. Cameras also focus on the seaside city of Aveiro, and there's a trip to Lisbon to visit the home of the regional custard tart.

This week, we're celebrating Italy and following the Neapolitan Line. Travelling west from the gelato shops of the seaside town of Pescara, we cross Italy through the remote and wild Apennine Mountains down to the hustling city of Naples on the west coast. Our journey ends on-board the royal carriages preserved in the old locomotive works of Pietrarsa.

This is a scenic railway journey like few others. Leaving chic 21st century Nice behind the Train des Pigne takes us back into the Provence of the past.

Cameras follow a train route from Bergen to Oslo, through the extraordinary mountains of southern Norway in winter. This super-fast train travels daily to the country's capital, and first stop is Dale - a place where Norway's most famous knitters design and craft the country's famous jumpers. The final stop is Sandvika, where Monet painted around 30 scenes.

The Dovre line runs from Oslo to the remote northern wonderland of Trondheim, passing through the vast Gudbrandsdal valley and across the awe-inspiring Dovrefjell mountain plateau.

From Tirano in Italy, this route spirals 1000 metres up the Alps, past glaciers and through mountains, until ending at the base of the majestic Matterhorn.

Cameras focus on the island of Taiwan, and three extraordinary railways. The journey begins in the eastern port city of Hualien, from where we travel north along the rugged Pacific coast. The trek ends with a view of Taiwan's highest mountain peaks above a sea of clouds.

A trip through the Peak District at full steam, pulled by the Royal Scot, one of the finest locomotives ever built. On the way from Crewe to York, the train travels over Chat Moss on a line built by Robert Stephenson, which once served the famous Rocket.

The luxury Al Andalus train takes in some of the most beautiful cities in Spain.

A magical mid-summer railway journey through central Sweden starts in Mora on the Inlandsbanan. This traditional town is in the county of Dalarna, the heart of Swedish traditional culture and often known as 'Sweden in miniature'.

Our Scottish rail journey starts in Kyle of Lochalsh, a tiny fishing village on the far west coast and takes us east across the breathtaking Highlands.

The Northern Spain line begins near Leon in the Picos de Europa mountains, takes in Bilbao's Guggenheim Museum and the beautiful coastline of Galicia, finally ending in the spectacular harbour of Ferrol.

A journey through the mountains of the Italian Riviera in a restored vintage 1920s train, beginning at Cinque Terre national park, and concluding in the historic port city of Genoa. Along the way, the train stops at the elegant resort of Santa Margherita and the remote 10th-century abbey of San Fruttuoso.

Escape with us aboard the magnificent steam train Tornado as it is coupled up with 13 luxury vintage carriages on a 6 hour journey through Yorkshire, to Northumbria and the Borders.

Starting in Denver, the Rocky Mountaineer makes its way through the state of Utah.

Celebrating the wonders of Queensland, we travel over 1,000 miles (1,600 kms) from Brisbane to Cairns onboard one of the most advanced trains in the world.

Canada's iconic Rocky Mountaineer train loops from Vancouver to the heart of the Rockies via crystal clear lakes, lush coastal rainforest, and the splendour of the Fraser Canyon.

The West Highland Line is one of the world's truly legendary train routes, crossing spectacular Scottish moors and mountains as it heads towards Skye. Starting in Glasgow, it glides towards Loch Lomond, the world's largest inland stretch of water. It then sweeps north to enter the wild and windswept landscape of Rannoch Moor. After ascending to Corrour, Britain's highest station, the journey passes Ben Nevis, the UK's tallest mountain and then across the famous Glenfinnan viaduct. The coastal town of Mallaig is gateway to the Isle of Skye with its world-famous Highland cuisine and many breathtaking views.

A ride is taken aboard the Northern Belle in and out of England and Wales.

A look at Bavaria's rich history of steam travel, seeing world-beating miniature railways and visiting a whole host of interesting places on a journey to the heart of the Bavarian Alps, where a beer-brewing monk and a town made famous by the Winter Olympics await. Later, a trip to Germany's highest mountain Zugspitze - which offers amazing panoramic views right across Germany and Austria.

In Anchorage, Alaska, cameras focus on flagship service the Denali Star, a luxury passenger train and part of the great Alaska Railroad fleet. The vehicle then heads north along the Knik Arm, and crosses this huge sea inlet to enter the vast wilderness of Alaska, America's largest and remotest state.

Pulled by a gleaming Siemens Charger locomotive, our double-decked coaches will take us on a 350-mile trip into the Californian dream. On our way we'll stop off in Carlsbad.

Starting from one of the world's most remote cities, Walvis Bay, in Namibia, we roll 1,500 miles through the Kalahari desert to Pretoria, South Africa's Executive Capital.

The New Zealand South Island line scales the snow-capped Southern Alps, travels through Maori hunting grounds and finally reaches Christchurch, a city sitting on a volcano.