The summer home of the largest colony of bats in the world.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

A mysterious painting of the self-declared Emperor of the United States watches over a local hof-brau.

What was once one of the country's largest confectionary plants is now an abandoned ruin, but is still pretty sweet.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

A Bibliophile's Dream.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

Not to be confused with the iconic New York City skyscraper, this Chicago building is a vibrant hub for artists.

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

An avant garde art museum at the University of Chicago.

Built to house a chapter of the Knights Templar, this grandiose building is a relic of Freemasonry in Chicago a century ago.

A hot dog stand where the heads are just as hot as the dogs.

A speakeasy takes on Chicago's drinking culture.

A monument to the art of slicing people open.

Nonprofit art center that promotes outsider, intuitive, and self-taught art.

A century-old network of freight tunnels underneath the city's historic business district.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

Banksy gives themself artistic license with this piece of London street art.

Catacombs turned marketplace.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

An unusual round church in London with a Templar past.