Carvings in Turkey's Marble Road may have directed ancient Romans to a hidden brothel.

A charming beach town in Turkey captures all the colors of the rainbow.

This museum holds the most comprehensive collection of Armenian art in the world.

Huge stairway leads to this massive gallery.

This ancient monastery complex was transformed from an island to a peninsula when the lake was partially drained.

The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.

This church is dedicated to the patron saint of seafarers.

This beautifully preserved Ottoman house is steeped in history.

This ominous Albanian fortress houses tanks and downed planes as a reminder of their victories over Western imperialism.

Gigantic water vessel, permanently grounded in Southern Albania.

A museum dedicated to secret surveillance.

In the heart of Tirana, this underground nuclear bunker has been transformed into a museum.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

Once the fallout shelter of a dictator, this sprawling bunker is now a combined history museum and contemporary art gallery.

A curious little museum dedicated to the furry feline in the cat haven that is Old Town Kotor.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

No one knows the origin of this creepy little stone man with an oversized phallus.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

This doorless 20th-century elevator doesn't stop or slow down.

Be(w)ar(e) the moat around this historic Czech castle.

This 600-year-old home seems to defy physics.