This replica stave church looks like a piece of Norway was simply plopped down in South Dakota.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

The collection of 80+ pieces created between the years 1100 and 1500 is intended to be seen, heard, smelled, touched, and tasted.

An icon among Florida's pre-Disney tourist attractions.

A building so large that it has its own weather.

Where monkeys run wild and the humans are caged.

Disney's abandoned animal island is now an overgrown ruin that was almost the coolest attraction ever.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

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

An homage to everyone's favorite prehistoric cartoon family.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

An exotic wildlife habitat right off The Strip.

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

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

The unbelievably opulent home built for an infamous newspaperman.

The 28-foot granite map plots the locations of 40 theaters in New York City.

In its day this historic fort held 100 cannons pointed in almost every direction to protect New York.

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

Ancient serpentine sacrifice holder that has stood the test of time.

This famous city eluded concrete detection until the early 2000's.

No one is sure if the world's fourth-largest diamond had been found in a rubbish heap or was pawned by Napoleon's mom.