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 third-generation institution is one of the last in London that still cures its own salt beef for epic sandwiches.

On October 17, 1814, a 15-ft. wave of beer ran rampant through the streets of London.

This magnificently macabre shield shows the power of chivalrous love in medieval times.

This intriguing Bronze Age artifact spent centuries hidden within a Welsh faerie hill.

A gruesome and mysterious ancient sculpture of a pagan deity from the Roman occupation of Celtic Britain.

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

This five-star hotel was originally a swanky parking garage.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

This once-controversial and slightly confusing statue of Achilles was built out of captured cannons.

Eighty million natural history specimens call this gargantuan museum home.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

A small square plaque marks a failed assassination attempt that could have changed history.

A serious museum dedicated to two German comedians.

The prototype for all Nazi concentration camps.

The site of Austria's biggest concentration camp now honors its victims.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

A unique bridge with an equally unique view.

Dress up like a miner and take a slide into the disco-lit depths of this once foundational salt mine.

Terrifically morbid cemetary and site of famous Paracelsus' grave.

Epicurean and holy traditions converge in what may be the oldest restaurant in Europe.

The topiary maze at the Habsburg hunting lodge.