This Prototype for a Robotic Flipper Was Inspired by Sea Lions

The White Pass & Yukon railway system was built in 1898, connecting Skagway, Alaska, to Whitehorse, Canada. Amazingly, it took inexperienced workers just two years to build it into the side of an ice-covered mountain.

This Breathtaking Railway Was Built in Just Two Years (3:24)

Years of wheeling and dealing collectible cars have taught Robert M. Lee that it never hurts to ask.

The $5 Million Dollar Ferrari (3:04)

This 200-ton howitzer artillery gun is too heavy to transport in one piece. The answer is to split it in two, with the barrel going on one truck and the carriage onto another. Easier said than done.

Dismantling a Huge Howitzer for a Precarious Move (3:28)

The Ocean Endeavour is sailing toward a famous glacier near the Arctic town of Ilulissat. It's a route packed with dangerous icebergs, giving the ship's sonar and radar a tough workout.

How This Ship Handles Seas Loaded With Icebergs (4:00)

In the 1860s, the Australian Outback was the scene of major railroad expansion. At the heart of it was an unusual animal helping haul people and cargo alike.

The Unlikely Animal That Built Australia's Ghan Railway (1:41)

The Albula Tunnel, the second longest on the Glacier Express line that cuts through the Swiss Alps, was opened in 1903. As a result, it's badly in need of renovation - and engineers have an ambitious solution.

This Is How You Stop an Old Train Tunnel From Flooding (3:28)

The Canadian passenger train has a unique streamlined design that goes back to the 1930s. It’s a rare aesthetic, perfectly captured by this fan who makes replicas of them to sell, all over the world.

What Makes This Canadian Train So Special? (2:09)

Imagine being on a Japanese high-speed train when an earthquake hits. This is a scenario that the Tokaido Shinkansen railway team has been planning for, for years.

How Japanese High-Speed Trains Handle Earthquakes (2:36)

The Viking Sea is docking into the Scottish port of Lerwick. It's a major challenge considering the port is over 200 feet shorter than the ship. Can the staff captain in charge dock without causing damage?

How Do You Dock a Ship Into a Port That's 200 Feet Short? (3:56)