Where Stoddart and Connolly suffered in the infamous Bug Pit.

The ruins of an ancient Zoroastrian Tower of Silence believed to be the earliest example of the traditional funerary practice.

Light still pours into the ruins of this ancient Islamic observatory.

Catacombs turned marketplace.

A kaleidoscopic warehouse-maze of handmade neon signs.

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

An ancient necropolis of magnificent tombs.

In an area known in Bratislava’s postal history, this sculpture sits equipped with a functional postbox.

A series of bronze circus performers spread throughout a Slovakian shopping center.

Check out engineering marvels of the past at this unintentionally retrofuturist museum.

Gigantic Romanian salt mines used to heal respiratory conditions.

A muddy alien landscape that is home to rare species of exotic plants.

What looks like a crashed Zeppelin is actually a bright, airy reading room perched atop a modern museum.

An existential riddle in the world's largest ancient castle.

"Unity, Creativity, Beauty."

In a long-dry lake bed, these groups of massive stone pillars bear a striking resemblance to clumps of everyone's favorite fungi.

A striking symbol of the Bulgarian capital.

A flamboyant five-story building in Bulgaria resembles a crawling snail.