A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

This float factory takes the mask off of Mardi Gras and lets visitors see where the magic happens.

The fairy tale castle of the "fairy-tale king."

The world's oldest known salt mine.

Ugly 18th-century dwarf statues living in a perfectly landscaped Austrian garden.

The prototype for all Nazi concentration camps.

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

The footprint of a frustrated devil in Munich's Cathedral.

In Florence's great Duomo, a 26 foot fresco honors a mercenary famous for attacking Florence.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

The middle finger of modernity.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

There must be a pun in this haystack somewhere...

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.