The remains of this medieval Roman road and lookout towers dot the rugged coastline of southern Lazio.

Is this statue at Naumberg Cathedral the fairest of them all?

The “Sistine Chapel” of the Middle Ages merges 11th-century science and religion in wondrous hues.

Inside the dome of this gigantic, Saturn-shaped building is one of the largest planetariums in Asia.

A uniquely lettered street sign marks the corner where the iconic word game was invented.

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

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

This 170-year-old Swiss guesthouse built into the side of a mountain is best accessed by a cable car.

Across Ring Mountain is a vast collection of Native American petroglyphs unique to the region.

An ancient Phoenician citadel once stood at the site where Queen Dido first landed, according to legend.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

Nestled in an unassuming residential area, this "forbidden forest" is rumored to spirit away those who dare enter it.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

148 feet long and in the middle of a verdant forest.

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

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

This museum in the famously blue neighborhood of Sidi Bou Saïd showcases a traditional Tunisian lifestyle.

These abandoned Cold War-era bunkers are now a designated refuge for endangered bat species.

To fit bodies into this Renaissance crypt, they were first left to decompose in the crypt's rotting room.

At a Japanese train station, a goddess emerges from a dumpling.

This modern monument to pagan belief looks like it was transported straight from ancient times.

These ruins have been linked to a sherbet factory that exploded, but the story may be entirely fictional.