Why guests can't go up Lady Liberty's torch, a look behind the famous 21 Club's secret door, and how the city's top tourist attraction put cowboys out of work.

Five experts set out to explore how a Victorian gas lamp would help solve London's sewage problem, the surprising history of Marble Arch, and how the black cab got its unusual shape.

Local experts discover how the famous pride flag lost two of its stripes, and learning what an apartment on Telegraph Hill has to do with the CIA, mind control, and the Summer of Love.

A unique tour of Berlin hunts for little-known stories hidden in the city's famous landmarks, obscure sites, and even in its food.

Discovering how the key to Paris's revolutionary past is hidden in cobblestones and street design. Get a better view on Paris by skipping the Eiffel tower to climb the ugliest skyscraper in Europe instead.

Discovering where to get a Michelin star meal for less than three dollars and learning the amazing history of Hawker Food. Touring Singapore with "Toilet Man" to find out how beautiful gardens and obsessively clean toilets made the city rich.