One of Europe's largest supercomputers is housed inside of a disused chapel.

A stately palace has been converted into the world's largest cannabis museum.

Bask in the 19th century grandeur of an eccentric Freemason millionaire's private gardens.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

A beautiful but toxic fountain of mercury.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

The longest canal aqueduct in England was built without a plan to get water past the moving boats.

The historic site where Queen Elizabeth I once gave a searing speech.

The only museum in the world dedicated to preserving the life and work of American comedian and entertainer, Phil Silvers.

This World War II airfield is the last place the bandleader performed before he disappeared.