France's most famous cemetery, with some of its most curious tombs.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Mined to a depth of 240 meters with a perimeter of about 1.6 km, the largest hand-dug excavation in the world.

A safari-themed castle in the South African bush with the largest maze in the southern hemisphere.

Haven for Cape Fur Seals, until the Ring of Death of jumping Great White Sharks arrives.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

The remains of this visionary community can still be found much as it was a century ago.

This grave marks the final resting place of a legendary frontiersman... unless it doesn't.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

The world's longest known cave system.

This memorial to the Mercury Seven astronaut stands at the site of his former elementary school.

One of the first schools in the U.S. to admit students without regard to race or gender.

The chiseled jaw of this forgotten American hero still stands tall in a small Indiana town.

Colorful collection of antique musical oddities.

The highest point in Indiana is curated by an Eagle scout but may be in danger of losing its record to a nearby garbage pile.

The world's largest anatomically accurate brain sculpture.

The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

You thought Santa Claus didn't exist, but it turns out you were wrong.

This unassuming home was once “grand central station” for the Underground Railroad.

A 30-year-old Sycamore tree grown from a seed taken to the moon and back.

The first spinning jail built in the United States is the only one that still turns.

Lions and tigers and leopards, servals, pumas, bobcats, lynxes, and ocelots... oh my!

Inside this former medieval prison is a collection of objects designed to inflict unbelievable pain and suffering on the human body and mind.

The site where one of the most famous poems of World War I was composed is preserved to honor the legacy of the work.