Called the "Armenian Stonehenge," this ring of menhirs pierced with holes may be a prehistoric astronomical observatory.

Nestled in a peaceful valley, this Armenian monastery may have been saved from Mongols thanks to the eyes of God.

This series of Armenian caves held the oldest brain, shoe, and winery in the world.

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

A geological oddity topped with a 2,000-year-old pagan temple.

The most visited pilgrimage site in Armenia once held a saint in a pit for 13 years.

The majority of the highest mountain in Poland is actually located in a different country.

What happens when you cross a mayor and a painter?

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

Gigantic water vessel, permanently grounded in Southern Albania.

The largest Roman amphitheater in the Balkans once held over 20,000 people, but managed to lay hidden for hundreds of years.

One of 200 religious buildings recognized as a “culture monument.” 

Climb into Albania's communist history while enjoying a spectacular ocean view.

A folk-art cottage and hotel straight from a Slavic fairy tale.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

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

The ancient Greek Titan guards this massive dam holding a lightning bolt to symbolize electricity.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

Romania's triumphal arch looks out over Bucharest.

Romania's only crater lake with water as pure as if distilled.

This once-derelict building is now one of the most beautiful bookstores in the world.

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

Conspiracy theories and occult legends surround this mysterious natural rock formation.