1513 Turkish world map, full of European state secrets and snarky commentary.

A marvel of Byzantine engineering under the streets of Istanbul.

While not Turkey's deepest underground city, this subterranean redoubt is the largest.

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

Mausoleum and Holy Seat of Antiochus I of Commagene.

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

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

Museum dedicated to the terror regimes of Hungary.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

Macabre astrological automaton clock dating to the late 1400s.

A "miracle" that seems to produce more holy fistfights than holy revelations.

A Bulgarian monument to Russia's role in World War II is constantly being painted in pop culture protest.

This tiny Bulgarian town offers a stunning location in the mountains and a storied history.

Get up close to emus and ostriches, or buy their tasty meat.

It's not your typical library, memorial, or book store.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.