Step back in time and witness the fall of Constantinople.

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

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

A marvel of Byzantine engineering under the streets of Istanbul.

This 1000 year old relic-filled cave monastery and UNESCO World Heritage Site also hosts an amazing micro-miniature museum.

The deepest metro station in the world.

A beautiful art space and unusual mini-hotel hidden in the city center of Dnipro.

This street has over a half-dozen names, all at once.

This hidden fortress has been coined the "City of Ghosts."

This Ukranian fortress is one of the best-preserved medieval castles in Europe.

One of the most valuable palace-garden complexes in the eastern borderlands—and one of the most haunted.

A Kyiv-based repository for all manners of discarded curiosities.

World's largest crossword puzzle spans the side of a towerblock, its clues scattered throughout the city.

When you've got to go, you've got to go.

A monument to Lenin has been transformed into a statue of everyone's favorite black-helmeted, fool-choking Sith Lord.

The largest catacomb system in the world.

The ruins of an abandoned church loom within a picturesque Ukranian village.

Ride in 1960s style on the private luxury train Marshal Josip Tito used to travel around Yugoslavia.

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.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

There's a mini version of Iguazu Falls hidden in the Balkans, and it's got a rope swing.

This surreal memorial/cemetery is a necropolis of crumbling stonework and puzzle-shaped headstones.