The most metal church of all time was built in record time because of an international, pious pissing contest.

The largest Neolithic ruins in the world hide a notably clean prehistoric metropolis.

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

Step back in time and witness the fall of Constantinople.

Ottoman-era houses lovingly preserved.

Once described as the "Eagle's Nest," this ruined ancient city rests on a remote mountaintop.

These tombs were built into the side of a mountain so that ancient angels could reach the dead.

A marvel of Byzantine engineering under the streets of Istanbul.

Roman ruins top white travertine terraces formed by ancient hot springs.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

A Turkish ghost town abandoned in a population exchange with Greece.

Mausoleum and Holy Seat of Antiochus I of Commagene.

The ornate miniature mansions were built for Istanbul's feathered residents.

This famous city eluded concrete detection until the early 2000's.

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

Wall to wall taxidermy at Denver's oldest and most exotic steakhouse.

A technicolor place of worship for Elevationists.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

Rippling sand dunes frozen in the Arizona rock.

All of the 20 occupied houses in this mostly abandoned town feature some curious display of junk art.

On the outskirts of a reborn ghost town, a decaying post office remembers the bad old days.

A Wild West jailhouse that slid down the mountainside.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

A house carved into a rock in the 1940s.