You can enjoy a (possibly haunted) stay at the medieval Norman castle that was once a favorite hunting lodge of King John.

Eyam took steps to quarantine themselves and keep the plague from spreading.

Every equinox this Maya pyramid puts on a spooky ancient light show.

A historic observatory precariously perched at the "Top of Europe."

This ancient sinkhole-turned-healing-pool is a treasure trove of archeological discoveries and may even be the Fountain of Youth.

Every fall this lake mysteriously drains, like a bathtub with the plug pulled out.

The frozen bubbles that form on the icy surface of this Canadian lake contain enough methane to create a small explosion.

This ghost-town bar has bullet holes and plenty of stories lurking within its walls.

Saved by a logger, this Douglas fir is one of the last great old-growth trees in Canada.

Hundreds of enormous icebergs drift through this waterway every year.

A crumbling cliffside ruin hidden in the woods.

A popular place to pick up prehistoric coral fossils from the time when Michigan was an ocean.

Defying all odds, this lonely little tree found a home on a log sticking out of a Canadian lake.

Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.

Traveling this mountain pass reveals quaint stone buildings, stunning Irish scenery, and a bridge said to grant wishes.

The ruins of an ancient pyramid built by the mysterious Chupícuaro civilization.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

The castle still holds traces of the abandoned Roman fort it was built atop.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

Stroll through Welsh history in a village of reconstructed structures.