A medieval house adorned with enigmatic carvings, including one of a man displaying his masculine attributes.

France's most famous cemetery, with some of its most curious tombs.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This large, circular tomb is the final resting place of the first emperor of Rome.

2300-year-old Roman road connecting the empire.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

An abandoned Byzantine fortress and notorious prison.

An ancient octagonal weather station named for the eight Greek gods of wind.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

A cluster of historic bathhouses built on the famed hot springs that gave the Georgian capital its name.

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

This Armenian monastery was carved out of cliffs and named after the spear used to stab Jesus.

The lovely lake that was naturally dammed, then naturally destroyed, then unnaturally saved.

This 13th century Orthodox monastery is built right into the Moldovan cliffside.

This abandoned Soviet circus is slowly being restored to its Communist-era glory.

Elaborate mansions built by Roma residents in Soroca to show their success after centuries of discrimination.

Seventy-five miles of limestone caves host more than a million bottles of wine beneath a sleepy Moldovan town.

This Transylvanian church has changed its denomination four times.

Once the legendary capital of the Dacian Kingdom, this city has been reduced to mere ruins.

This hauntingly beautiful cemetery outside a medieval citadel is full of winding paths and ivy-covered graves.

Nine centuries-old fortresses guard the walls of this medieval Romanian city.

Romania's triumphal arch looks out over Bucharest.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

This snug medieval lane is one of the narrowest streets in the world.