Only known mainland rookery of the threatened Stellar sea lion.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

This spectacular track has run continuously since 1882.

A tribute to Ponce de Leon's supposed quest for eternal youth.

The unbelievably opulent home built for an infamous newspaperman.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

This historic national park is covered in the stunning ruins of red rock pueblos.

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.

One of the ghostly stops along Route 66.

A Hawaiian stairway to heaven—that you can't climb.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

A multi-storied adobe complex has been inhabited for more than a thousand years.

This legendary "evil" doll has been haunting the citizens of Key West for over 100 years.

Costumed elves and mountain bikers co-exist peacefully at this abandoned Christmas-themed adventure park.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

A Saint Nicholas-themed ghost town in the Mojave desert.

Legends surround this jagged rock formation in the New Mexico desert.

Arrr! The most authentic collection of pirate artifacts in the world... matey.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A battle between nature and architecture in the Cambodian jungle.

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

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.