At the base of Steens Mountain resides an otherworldly desert.

With a crest near 10,000 feet, this treeless fault-block mountain in eastern Oregon provides stunning views and spectacular glacial landforms.

These falls, sometimes called the "Niagara of the West," still put on a good show at the right time of year.

Where the famed daredevil attempted to launch himself across a canyon in a custom-built rocket.

One of the "twins" in these falls on the Snake River was sacrificed for hydropower generation in the 1930s.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

Surrounded by a hundred mile radius of billboards, Little America is a roadside attraction whose primary appeal is hospitality.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

A popular legend claims that the famous pizza was invented at a restaurant in this alley.

These "anatomical machines" are only one of the many strange items in this Italian crypt.

A 16th-century horror show built in a lovely Italian garden.

Renaissance villa and gardens complete with a tormented colossus.

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

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

Caligula's colossal pleasure ships, discovered by Mussolini only to be lost in flames.

This museum is a full-size replica of an original church constructed during the 13th-century.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The first declared National Monument in the United States.

A fitting attraction for the corn capital of the world.

One of the largest Buddhist stupas in North America is built of concrete designed to last 1,000 years.