Step inside this medieval Orthodox gem and travel back to the 16th century.

This often-missed monastery, set in a scenic mountain landscape, features unique frescoes, fortifications and legends.

A rooftop restaurant hides in plain sight atop Vienna's Palace of Justice.

This former insane asylum now holds a pathological anatomy museum.

Museum devoted to the artificial language of Esperanto.

Handsomely crafted representations of our round planet.

An observatory with a 54-meter-wide radio telescope sits in the mountains of Armenia.

The heartbeat of modern Uzbekistan’s thriving market culture.

One of the most ethnically diverse spots on the planet.

Controversially restored in the 1970s, this giant 15th-century mosque is shrouded in legend.

Once a luxurious flagship of the Soviet Union, this Brutalist structure remains a landmark of Tashkent’s communist past.

Prowl through this sprawling bazaar under a massive Soviet-era dome for delicious eats.

Witness traditional silk production in the Uzbek city that's been a hub of sericulture for over a thousand years.

An underground world of gorgeous, palatial metro stations designed as a nuclear shelter complex.

Where Stoddart and Connolly suffered in the infamous Bug Pit.

Giant cauldrons overflow with Uzbekistan's favorite rice dish at this cavernous dining hall.

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

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

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

This "tower of death" has acted as an observatory, a religious hub, and an executioner's lair.

Final palace complex of the last of 29 Kokand rulers.

Ancient barriers wrap around what was once an important stop along the Silk Road.

Once a bustling fishing port, this semi-ghost town is now more than 90 miles away from the shore.

Light still pours into the ruins of this ancient Islamic observatory.