A 14th-century Serbian Orthodox church that was once converted into a mosque under the much-disfavored Ottoman Empire.

This lonely minaret with an unusual decorative symbol is all that remains of a historic Ottoman mosque.

As of 2022, the 124 rooms of Kosovo ski resort remain empty.

The ceiling of this cavern is dripping with multicolored marble stalactites.

Christianity and Islam have clashed, yet here a Serbian Orthodox church and a mosque stand together.

Rest stops along this pathway offer some of the best views of the Acropolis of Athens.

In Rome’s Jewish ghetto, a 200-year-old bakery still makes the neighborhood’s historic sweets.

It's believed that these columns marked the end of the Via Appia.

Dramatic sea stacks adorn the coast of this small village on the Adriatic coast.

Wander through the Corridor of Wonders in these stunning limestone caverns.

A 1,000-year-old church holds the bones of the Christian martyrs who died hiding inside it.

A long-buried ancient ruin unearthed right in the middle of the city.

One man's quest to fix his toilet unearthed over 5,000 artifacts spanning more than 2,000 years of history.

A fascist-era rural village abandoned since the early 1980s.

An eccentric artist's abode in this small Italian town has been transformed into a surreal temple of mosaic madness.

A single column facing the sea is all that's left of one of the most important temples of Magna Graecia.

This church carved into the rocks is full of enchanting stone statues.

This crystal clear water basin feeds the Lao river and powers a hydroelectric power plant.

A mountain cave is the site of archaeological findings and Paleolithic rock art.

This medieval hilltop village was abandoned at the end of the 19th century, after existing for more than 500 years.

This ancient city was home to one of the greatest schools of Greek philosophy.

This seaside Italian village doesn't just look Escher-esque, it actually inspired the mind-bending artist.

A narrow opening between the mountains of the Amalfi Coast creates a scenic hidden beach.

A limestone grotto where daylight filters in from below and turns the water a beautiful turquoise. Also home to a small underwater nativity scene.