Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

The platform atop this verdant volcano was built with the help of a royal elephant.

Australia's largest collection of rare and bizarre insects.

This small oxbow lake has rare giant river otters and some Seussian-sounding birds.

A historic ruin just 20 feet away from a busy highway onramp.

The world’s first hotel to be run by robots.

This space-age looking obelisk rises over a city in the rainforest, meant to resemble the local castaña tree.

This star-studded Old Hollywood restaurant is where fettuccine Alfredo made its United States debut.

The easiest way to the highest point in Wyoming is only accessible via one hefty fee.

Despite a legend that says this highest peak in Oregon was climbed in high heels scores of people have died on its slopes.

To literally keep their waste out of their own backyards, the citizens of this English city built an impressive sewer system that is still in use today.

Named after a militant urban guerilla, this famous former squat is a graffiti-covered stronghold of leftist culture.

Some North Carolina Cherokee have been keeping their history alive for decades with a single play.

The highest peak in Puerto Rico is home to a rare fern that can only be found on six trees at its summit.

This memorial to the thousands of Indian dead during WWI was callously used for target practice during WWII.

Once the local rulers had gone these enchanting ruins housed common folk in an almost real life fairy tale.

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

When Croatia became independent of Yugoslavia, the splintering governments left behind these concrete tunnels.

Formerly Yugoslavia's "forbidden island," this sleepy little city still holds the abandoned remains of military strongholds.

The highest point in Washington state is a volcano covered in glaciers.

This Romanian village may have been drowned, but it is long from forgotten.

One of the oldest churches in Romania is believed to have been built on the site of a pagan temple.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

This Russian museum stresses the importance of keeping clean and even holds one of Pavlov's dogs.