Step inside Lucy, the world's largest "elephant."

Surrounded by traditional homes, this Tolkien-esque dwelling stands out on a quiet street in suburban Maryland.

The original Uncle Sam was actually a New York meatpacker who is buried under this historic grave.

A dangerous narrow-gauge railroad once traced a route through this striking canyon.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

An unphotographable nightly march of tens of thousands of "fairy penguins" from sea to shore.

The bullet-banged DIY suit of armour belonging to Australia’s most famous outlaw.

The world's second-largest sundial, made entirely out of stone.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

A beautiful multicolored mound formed by the mineral deposits of the Orenda Spring.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

An Inca spa, military outpost or maybe… both?

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

A giant open-air sculpture made of over 200 full-sized boats.

The second-largest gold nugget in existence, displayed in a Las Vegas casino conveniently named the Golden Nugget.

A piece of the iconic wall found an unlikely new home in a Vegas bathroom.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

A display of hand-built replicas of the legendary vessels used by Patagonian and Antarctic explorers.

These boots are made for selfies.