Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

A naturally mummified 2,000-year-old man.

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

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

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

A measuring mishap led to these artificial stone ladies losing their stomachs.

This church houses the tomb—but not the remains—of St. Nicholas, the likely progenitor to Santa Claus.

This arch granting triumphal entrance into Antalya was designed to honor the emperor's visit.

A sacred lake with thousands of sacred carp and a biblical history.

This hunter-gatherer architecture is believed to be the oldest religious complex known.

The ancient abodes are a testament to human ingenuity amid harsh climates.

Balanced on four stone pillars, this historic tower was the site of a tragic political assassination.

A Turkish monastery tucked into a cliff wall.

An abused and forgotten metropolis, abandoned for centuries.

This ancient abandoned church in a remote part of Turkey is in danger of falling over.

An ancient church on a tiny island covered in stone bible stories has controversially been turned into a museum.

A unique museum dedicated to culture and artistry of carpet weaving.

Home to nearly a third of the world's mud volcanoes, Azerbaijan is home to a messy, bubbling, and sometimes explosive landscape.

Resonant stone, that has been played since prehistoric times.

A massive collection of petroglyphs dating back some 40,000 years.

A gigantic collection of teeny, tiny books.

The building's fluid, wavelike walls are a true feat of architectural ingenuity.

Mysterious hillside with a continuously burning natural fire.