Take respite inside this jaw-dropping church while climbing the volcano where Georgia's Prometheus was once chained.

The charmingly disheveled clock tower of Tbilisi's puppet theater.

A public park commemorating the iconic works of a satirist, with medieval ruins on the side.

This mysterious but iconic tapered tower appears in many Azeri fairytales and legends.

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

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

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

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

The Avenue of Mausolea is a series of grand palatial tombs.

The oldest church in Serbia was also the ecclesiastical seat of the region during the Middle Ages.

This dazzling Art Nouveau mansion is now home to the Modern Art Gallery Subotica.

A museum dedicated to the former country.

Through the colossal entrance to this cave you'll find limestone tubs and an underground waterfall.

Religious perseverance and cultural coexistence manifest in an architectural gem that multiple wars couldn't topple.

The interior of this Serbian royal family's mausoleum is covered with exquisite mosaics.

For over 40 years, this quaint little house has teetered on a rock in the middle of a river.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

A pair of connected skyscrapers form this symbolic gateway.

A Serbian church lit by chandeliers made of weapons.

This 14th century castle withstood years of battle but is now sliding off the hills into the Danube.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

Single runway interrupted by a busy road that cuts across its middle.

The studio built by fascists in the hopes of "reviving the film industry" with the occasional propaganda film opportunity thrown in.