These 7,000-year-old cave paintings depict life in Neolithic Spain.

Order a salt beef-loaded beigel at any hour of the day or night at this East End institution.

The bullet-riddled wall from the St. Valentine's Day Massacre, bloodstains enhanced for your viewing pleasure.

The best Tiki bar in Las Vegas.

An obscure waterfall that looks like something out of a fantasy novel.

A petroglyph map of the upper Snake River carved by prehistoric hunter-gatherers.

An inconspicuous footbridge beloved by San Diego locals.

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

A submerged archeological park still holds the wonders of a Roman Sodom.

The fictional star of "Breaking Bad" is memorialized with a real-life gravestone in his hometown.

This is the oldest Roman-made bridge in the city still existing in its original state.

This amazing abuela became a diehard metal fan late in life and an icon of Madrid's '80s rock scene.

Dedicated to the armor and weapons used by the legendary Japanese warriors.

Inside this striking glass building, visitors can see thousands of dinosaur fossils in the positions that nature deposited them more than 150 million years ago.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

This rare surviving broch is one of Scotland's most impressive Bronze Age structures.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

An outcropping plays host to the largest collection of pre-contact petroglyphs in Saskatchewan.

A mysterious taxidermy man-beast of the seven seas.

Egyptian treasure trove of fossils documenting the whale's transition from land mammal to sea creature.

The hallucinogenic center of the ancient world.

Living fossils in this remote Australian bay provide a glimpse of what Earth may have looked like 3.5 billion years ago.

An Aztec temple, the largest man-made pyramid in the world, sits buried in earth with a Spanish church set on top.