See the computer’s history revealed over the course of 20,000 years.

Harry Potter once visited this massive limestone cliff, which was carved by an ancient glacial river.

In the land of the Light Brigade stands a testament to the Cold War.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

A grand imperial capital left to fall into magnificent ruin.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Avenue of trees planted by cosmonauts before their space departures.

An entertainment center in a huge transparent tent.

Rusting ships sit in a desert where a sea used to be.

World's oldest and largest space launch facility, once a secret missile testing site.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

This hilarious English intersection is an automotive whirlpool.

Eighteenth-century home, where Herschel discovered the planet Uranus.

This Scandinavian island is the site of the first modern observatory.