The haunted vaults of Edinburgh's South Bridge are a spooke tour option.

At 145 feet deep, this thundering, underground waterfall is in America's deepest cave. It has been called one of the world's most famous natural wonders and is more than eleven hundred feet beneath the mountain.

Up to 30% of travelers on the London Underground don't take the most efficient route on the Tube. To address this, there's a new tube map up at London-Tubemap and you should take a look at it if you either live in London, or are about to travel here.

Victoria station is a central London railway terminal and London Underground or Tube.

What I liked most about the museum were the many family friendly exhibits that were scattered throughout the three story museum.

This is for everyone in London who've suffered from the London Underground strikes lately!

The Kansas Underground Salt Museum is located in the heart of Kansas in Hutchinson. Part museum and part working salt mine, it is an attraction that is so unique that it is the only one of its kind in the United States.

King's Cross and St. Pancras train stations sit across the street from each other and serve as the major hub for rail travel throughout England and beyond.

Boris Johnson this morning unveiled a mock-up of the new "S" stock trains being constructed for the Metropolitan, Circle, District and Hammersmith & City lines

“Can you tell me where I can see the hobbits?”, “Are the tunnels underground?”, and “Does my ferret need to be on a lead in this area?” are just some of the crazy questions tourists have asked

The Wieliczka Salt Mine is known as "the underground cathedral of Poland." This mine dating back to the 13th century stretches over 300 kilometers below ground and you can visit it while in Poland

British travel-and-everything-else company Virgin listed the best underground transit systems in the world. Amazingly, London's Tube system is at number one!