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

A Romanian church built from one single oak.

Once the legendary capital of the Dacian Kingdom, this city has been reduced to mere ruins.

A memorial museum to the political prisoners who were held at Sighet Prison, once one of the most feared places in Romania.

This 1939 grave of a British soldier now receives legions of unlikely visitors.

Deep in the Negev Desert, the world's tallest solar tower looks like a sight straight out of science fiction.

Two innocuous monuments found in separate locations attempt to unite a city.

As the Dead Sea continues to deplete, massive sinkholes open along its banks.

A massive, heart-shaped, wind-carved crater in the middle of the Israeli desert.

Submerged ruins of a Neolithic coastal settlement, where houses, wells, graves and skeletons have been unearthed.

Squeezing inside this deep, narrow canyon reveals a festival of desert colors.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

The home of the Dead Sea Scrolls is an abstract modernist dream.

This family tattoo parlor has been inking religious pilgrims in the Middle East for 700 years.

You can row a boat through this ancient underground reservoir.

A mud statue stands in the dark tunnels, seeming to hold up the weight of the city above.

Despite being considered a thoroughly American sport, basketball's oldest surviving playing field is found in the basement of a Paris YMCA.

A subterranean shelter remains intact under a busy Paris railway station.

Paris' linguistic guide to the international language of, yes, love.

Notorious artist squat renovated into legal studios.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Abandoned railway line circling the city of Paris.