Over a million items cram the shelves at Africa's largest shop of used and rare books.

Hidden in the hills is a mysterious stone structure, known only to a few.

An abandoned water park overtaken by the dunes.

A South African bar inside a hollowed out 6,000-year-old Baobab.

Formerly known as the Malay Quarter, Bo Kaap is a colorfully-painted suburb located in the “Mother City” of South Africa.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

Raging waters have created a strange geological site that looks like something off of a progressive rock album cover.

This cheese shop also houses a museum devoted to Dutch dairy.

Curios, scientific antiques, oddities for sale.

While comics are the main attraction at this megastore, the second floor plays host to an exhibit fit for a museum.

An ADA-accessible trail and deck offering stunning views of Colorado’s Mount of the Holy Cross.

A remote sandstone plateau named for a legendary cattle rustler.

Historic, 19th-century wagon wheel ruts cut into soft volcanic ash.

The decaying ruins of a failed mining company’s water diversion project cling to the side of a desert canyon.

A hotel with a rich Wild West history of miners and bootleggers.

The site of a defunct mill, that once supplied marble for the construction of the Lincoln Memorial.

Once a lonely sentinel on the edge of the Great Plains, this rebuilt trading fort offers a glimpse of life on the Santa Fe Trail.

This old train trestle and collapsed tunnel once allowed the railroad to negotiate the steep slopes of the Colorado Rockies.

This 19th-century ranch is being transformed into a residential library with thousands of books about the natural world.

Paleoamericans built these ancient walls high in the Colorado Rockies as part of an extensive hunting system.

Two creeks flow out of either end of this canyon in opposite directions.

One man's love for East Coast diner culture brought an entire eatery all the way from New Jersey to Colorado.

The giant stump of the once towering cottonwood where Ute people held tribal meetings.

This three-mile concrete levee in Pueblo, Colorado was transformed into the world’s longest painting.