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

This solitary monastery may hold the remains of Vlad the Impaler (but probably not).

Moss and stone turn this waterfall into an otherworldly liquid veil.

Backwards hour and minute hands and a timing mechanism that fluctuates with the temperature led to this clock tower's local nickname.

A beautiful 19th-century mansion slowly crumbled and became a 'ghost house' after World War II.

A window into the luxurious lives led by the landed gentry of Minsk before the 1917 Revolution.

Taking the subway here means doing so over a bridge located in the middle of an estuary.

This picturesque monastery at the base of a cliff is a peaceful oasis open to all visitors.

This monumental work of art symbolizes the coming together of a previously divided city.

Beautifully carved tombstones fill this unmarked graveyard, uniquely situated near the village's famous stone wine cellars.

These natural stone bridges are the largest on the European continent.

Legend says this sacred tree was a gift from goddess Athena.

A massive collection of petroglyphs dating back some 40,000 years.

A fountain standing as a testament to a doomed alliance.

The most metal church of all time was built in record time because of an international, pious pissing contest.

Ancient serpentine sacrifice holder that has stood the test of time.

This artistic fountain display pays homage to this area's theatrical history.

This statue of a goat in boots is meant to represent the European Union.

For patriotic Russians, this memorial honoring the Soviet soldiers who died liberating Berlin in 1945 is the most sacred location outside of Russia.

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

This church is named for one of the most dramatic tales in the early Christian church.

This open-air, narrow-gauge railway museum pays homage to the region's transportation history.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

The smaller of the three towers of San Marino is a former prison inaccessible from the ground level.