Iran's colorful terraces are a rare geological masterpiece.

Every hour the doors open to reenact the legend of the heroic mayor who saved his town by drinking a gallon of wine.

The Brutalist building harbors an unusual inverted dome that swoops down over its central sacred room.

The only microgravity tower in Europe can produce nine seconds of weightlessness.

This long-distance walking route follows the Prime Meridian line as it passes through England.

The skulls and bones of thousands of soldiers line the walls of this small Italian chapel.

The medieval home is still engraved with the symbol of the profession, an eye flanked by two axes.

In paradise, feral pigs have claimed an island all to themselves.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

An impressive century-old, to-scale topographical map of Guatemala.

The Belgian library displays burned books that were salvaged from the fires of both world wars.

Hidden dwellings in the cliffsides of North Togo used by local Moba tribes to evade 18th-century slave traders.

Dead weights honor the dead of Portugal's fishing industry.

The only diamond mine in the world where you can keep what you find.

This remarkable prehistoric town is full of watchtowers and houses that have withstood thousands of years.

This ancient shrine has been rebuilt every 20 years since the eighth century.

A tribute to an iconic act of defiance from the Croatian War of Independence involving a small car.

This giant, 83-year-old ship elevator is an engineering feat to behold.

An isolated 17th-century chapel on a remarkable site once dedicated to Celtic sun worship.

A remarkable lava formation encloses a line of Buddhist statues that can't be accurately counted, according to local mythology.

The last inhabitants of one of the U.K.'s most remote islands were evacuated in 1930.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

Bonsai trees that are up to a thousand years old.

This 15th-century island fortress later served as home to the executioners no one wanted to live near.