The haunting peak of an old church is all that remains of a drowned Brazilian city.

The largest open-air contemporary art center in Latin America is a unique experience in the Atlantic Forest.

These termites have an large and deadly abode—impressive by day, dazzling by night.

Part of one of the largest flooded cavities on the planet, and littered with prehistoric animal bones.

After millennia of erosion by sand and churning water this Brazilian valley now looks like a lunar fantasy.

A beautiful, abandoned farming headquarters overtaken by nature and graffiti.

This intriguing museum chronicles the history and impact of immigration in Brazil.

Once a year, ambitious surfers can ride the world's largest river.

This small Brazilian museum honors the work of a German biologist who studied the jungles for decades.

As one of the world's largest hydroelectric dams this plant took two countries to get built.

An overlooked collection of over 350,000 artistic works created by psychiatric patients using art therapy.

This New England drive-in was built to straddle the border between two states.

Around 100 sculptures from artists all over the world decorate the hiking trails surrounding this locale.

This railroad tunnel was once the longest in Massachusetts.

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.

From economic backbone of a community to deadly diving hole, these former stone quarries are now a park for rock climbers and graffiti artists.

On top of Gibbet Hill lie the ruins of a lavish turn-of-the-century estate that never quite came to be.

A New England ghost town features a trail of boulders etched with intriguing life lessons.

An eccentric inventor's castle home with its own indoor weather system.

A pair of large white marble lions guard this stretch of the Mojave Desert, and it is utterly mysterious how they got there.

Community bookshelf of 25-foot-tall book spines.

An alternate history park where the Union Army loses the war... to dinosaurs.

The behemoth beasts engaged in an epic battle is the second-tallest statue in the contiguous United States.

A promotional sun clock on the site of San Francisco's great raceway.