A walk through the historic city center, under the streets of Seattle.

The hall of fame for circus performers.

The collection of 80+ pieces created between the years 1100 and 1500 is intended to be seen, heard, smelled, touched, and tasted.

A circus legend leaves an unexpected endowment.

The museum chronicling a treasure hunter's dream, fulfilled.

Florida's oldest bar was once a morgue, complete with a hanging tree and gravestones.

An idyllic swimming pool tells the tale of Hemingway's trouble with women.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

The birthplace of American international flight service has been turned into a celebrity's microbrewery.

The highway's southernmost spot is a beloved local attraction.

A mysterious suspended hand greets unsuspecting visitors at the Tower of London.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

Graffiti from the 16th and 17th centuries cover the walls of this part of the Tower of London.

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

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

There's an exclusive Beefeaters pub hidden in the Tower of London.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

Claiming to be the oldest hat store in the world, this historic haberdashery had a hand (and a head) in the creation of the Bowler.

This luxury shopping lane has been protected by its own tiny police force for over a century.

The wooden telephone box hidden away in London's Piccadilly was the original prototype of the iconic kiosk.

A traditional American farmhouse plopped in the middle of a Piccadilly courtyard.

At the top of the hour, figures of the London department store's two co-founders emerge and bow to each other.