The Viking Longship Gefjon is one of the latest in Viking Rivers' line of longships that cruises the Danube, Main and Rhine Rivers, navigating tight channels.

A 15-day cruise on the Azamar Journey includes elephant-guided jungle tours and overnight stops in Bangkok, Ho Chi Minh City and Hanoi.

The Viking Star-class cruise ship visits southern Spain, Normandy and the canals of Amsterdam, as the crew navigates narrow passages and battles rough seas.

A captain and his crew struggle to navigate a new route aboard a vessel known as the Viking Sea as they sail from London to Scotland.

A minuscule cruise ship known as Europa 2 offers passengers a unique experience by leaving their Mediterranean destination up to a vote.

The Stella Australis takes passengers to parts of South America few people have seen, visiting sub-polar forests, vast glaciers and other remote areas.

The Rocky Mountaineer rail-tour company offers picturesque tours across Western Canada and over the Rocky Mountains as the train goes from Vancouver to Banff.

Passengers aboard a luxury tourist train are taken on a unique journey through Northern Spain alongside a historic 19th century rail line.

Travelling up the coast of New Zealand in style aboard the Coastal Pacific, a train that embodies the nation's spirit of grit and determination.

The largest cruise ship in the world has 21 swimming pools, 24 restaurants, a zip-line, a casino and replicas of Central Park and the Atlantic City Boardwalk.

Royal Caribbean's huge Quantum of the Seas takes her first full length, 12-day cruise to the Southern Caribbean with 4,000 guests aboard.

The super-wealthy passengers of the Crystal Serenity cruise ship get an extra surprise when unfamiliar waters present a challenge the crew didn't see coming.

The Marco Polo delivers travelers to cities such as Copenhagen, St. Petersburg and Helsinki in late autumn, when crowds are smaller but travel is riskier.

Pinnacle-class cruise ship MS Nieuw Statendam is the world's largest boutique cruise ship at 300 meters long and can carry over 4,000 passengers.

An exclusive look is taken at the Ilyushin 76 Russian aircraft and the struggles it faces in the Arctic as it strives to make deliveries in icy conditions.

The world's fastest bullet-train known as Shinkansen is examined to see how rail operators keep passengers safe and handle earthquake-prone areas in Japan.

The crew and passengers aboard a cruise ship called MSC Divina is in danger of ending in disaster when a tropical storm grows to hurricane force.

The Roald Amundsen sails where few ships will ever go, the vessel was built specifically to take passengers on an unforgettable voyage to Antarctica.