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

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

The world's largest fully steerable radio telescope.

A beer pipeline runs beneath Bruges.

Frida Kahlo's childhood home, now a museum of her life and works.

The famous artist couple lived and worked here, in two different houses separated by a bridge.

Mexico's astounding mummy museum with "the world's smallest mummy."

Bubbling up from deep underground is the warm crystal clear water that fills the Warm Springs Pools, America's oldest spa.

The unbelievably opulent home built for an infamous newspaperman.

The only surviving prototype for Buckminster Fuller's house of the future.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

An angular maze of concrete in Grand Rapids acts both as public art and as a staircase for fish traveling upstream.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

A lush green oasis in the middle of Chicago.

A speakeasy takes on Chicago's drinking culture.

Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

All of Chicago's wood-paved streets are long gone but two alleys remain.

A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

One part local history, 99 parts gruesome haunted house.

The television series' iconic giant foot was borrowed from this classical painting.