Slyly buy a shake in the Parker Meridien lobby.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Elevated freight railway turned wildly successful urban park.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

An architectural oddity hides in plain sight on this iconic London bridge.

These docile dragons are ideal inhabitants for the conservatory greenhouses.

The ritual has been performed uninterrupted for nearly 700 years.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

An icon among Florida's pre-Disney tourist attractions.

Disney World's very first waterpark is now an abandoned ruin being reclaimed by the swamp.

A mysterious castle built as a monument to lost love.

An abandoned water sports stadium that has become a haven for graffiti and decay.

Former villa and estate of James Deering developed to preserve native tropical forests.