This elegant arc of a waterfall marks a religious turning point.

Instead of solid circles, the stoplights in this northern Icelandic town have glowing red hearts.

This former farm In northern Iceland is now a museum, where visitors can tour beautifully-preserved turf houses.

Rising from the sea like a stone monster.

The oldest steel ship in Iceland has been beached for years and is now a rusting ruin.

Puffin enthusiasts flock to Europe's largest seabird cliff, which over one million birds call home.

These eight mummies are the best-preserved human remains ever discovered in North America.

1% of Greenland's entire population used to live in this single building, which is now slated for demolition.

Beach instrument turned bed and breakfast.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

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

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

Every equinox this Maya pyramid puts on a spooky ancient light show.

This art installation pays homage to the famed stones of European lore.

Two buildings named after their windows that make it look like a sea of television sets plastered to a wall.

A pair of connected skyscrapers form this symbolic gateway.

Different sections of the Zemun Fortress were built in the 14th and 15th century as a response to the advance of the Ottoman Empire.

An Art Deco Icarus statue adorns this abandoned gem of Yugoslav Modernist architecture.

One of Serbia's oldest luxury hotels and a nostalgic echo to Yugoslavia in the state's former capital.

A small memorial to a deadly night in Serbia that shook the world before it was swept under the rug.

Considered an architectural abomination by some, this metal-clad building is known as 'little red riding hood' by locals.

A retro Yugoslav congress, cultural, and business hall built in the 1970s, with an iconic world clock.

An eerie fountain commemorating the death of a boy that sparked a small war in the 19th century.

Memorial to the victims of the Holocaust in Serbia.