Sleep in a glass pod dangling off a cliff.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

One person's lost luggage is another person's treasure.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Ride the subways of yesteryear.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

Eighty million natural history specimens call this gargantuan museum home.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Dramatic river bend surrounds a natural red-rocked pedestal.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

An abandoned whaling station on an active volcano offers hot springs in Antarctica, surrounded by ruined giants of industry.

Popular tourist destination where witches in dark hats sell dried llama fetuses for good luck.

In La Paz's huge, city-sized cemetery, the deceased are stored in rows of apartment-like buildings.

This likeness of the famous revolutionary is entirely made of recycled scraps of metal.

A valley of unique erosion patterns lends to a view like nothing on Earth.

The soaring gondola lines form the longest aerial cable car system in the world.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

The southernmost Anglican cathedral in the world has whale bones standing in its yard.

Visitors flock to see this church tower's unintended feature: It happens to resemble a giant chicken from multiple points of view.

A Buddhist theme park brings you a Buddhist version of Hell.

The world's most remote airport.