"Only the devil could play golf here."

Venue for strange sideshow displays and musical acts.

World's largest collection of serial killer artwork and other macabre exhibits.

The singular ruins of a mysterious lost city.

A whimsical menagerie of devils, krampuses, satyrs, and other horned creatures.

Mountain where Jesus was first tempted by the Devil.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

Barcelona's historic 19th-century sewers, whose foundations were laid in medieval times, are open to the public for exploring.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

Turntable anonymously received orphans, alms, and groceries.

This semi-secret storybook hedge maze is also the oldest garden in the city.

An 80-year-old house built out of newspapers.

One of only two pod-shaped homes designed by Frank Lloyd Wright.

Incredible miniature towns and buildings created and decorated with thousands of tiny rocks.

A cozy bookstore is tucked within an old gold mine shaft beneath the cafe and ice cream shop.

This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

A dollhouse full of taxidermy rodents, each one handcrafted and given a sordid past.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

This stunning sea creature-shaped home blends into the landscape like a fantasy villa.

An early work of the architect Álvaro Siza Vieira, these swimming pools blend into the beach.

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

The world's largest sticker ball weighs in at a mighty 231 pounds.

The abandoned ruins of a beautiful medieval castle just outside Barcelona.

A prohibition-style speakeasy takes up residence in the last Victorian residence in Hollywood.