A massive sea stack famous for its appearance in The Goonies.

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

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

Copenhagen's celebrated theme park and gardens.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Resting place of Hollywood's immortals is also site of summer film screenings.

The legendary building that needed ghostly approval before being built.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

The most visited, and possibly most controversial, museum in Germany.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

The most confusing clock in New York.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

A church of bones, decorated with 40,000 human skeletons.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Cold war icon and onetime "hole" in the iron curtain.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

See massive fossils that are over 200 million years old in northeastern Arizona.

"Girl in a Wetsuit" is what happens when a sculptor has to find a way around a 100 year old copyright.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.