One of the most ethnically diverse spots on the planet.

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

Looking for a unifying history, Uzbekistan finds its answer in a 14th Century Turco-Mongol conqueror... despite the fact he wasn't Uzbek.

An 18-meter-long sarcophagus of a constantly growing dead prophet.

Where Stoddart and Connolly suffered in the infamous Bug Pit.

Final palace complex of the last of 29 Kokand rulers.

These "50 Fortresses" have been unearthed in the ancient oasis of Khwarezm.

A dollhouse full of taxidermy rodents, each one handcrafted and given a sordid past.

Once an opulent Art Nouveau hotspot, the Constanța Casino is one of Romania's most beautiful abandoned buildings.

This magnificent mausoleum is as much a work of art as it is a historic resting place.

This huge abandoned fortress hidden inside a mountain holds a world of subterranean secrets.

The skeletal frame of a decommissioned gas-pumping station offers breathtaking views of greater Berlin.

The names Lúthien and Beren can be found inscribed on the shared grave of the famous writer and his beloved wife and muse.

This medieval sanctuary's tree-framed door looks like a portal to a mythical realm.

A medieval church with largest and oldest collection of Renaissance frescoes in France.

There is a strange little carving of a person seemingly crushed by a pillar behind the remains of St. Thomas Aquinas.

Cat art as far as the eye can see.

The largest toy museum in Poland showcases Europe's history of childhood.

An abandoned Nazi explosives plant founded by the inventor of dynamite is now an underground museum.

Warsaw's fantastically preserved gasworks...almost.

The site of the first battle of World War II.

The first (but not only) upside-down house in Germany.

This tree was extinct for a thousand years before sprouting again from a 2,000-year-old seed.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.