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

One of the "twins" in these falls on the Snake River was sacrificed for hydropower generation in the 1930s.

Where the famed daredevil attempted to launch himself across a canyon in a custom-built rocket.

Home to the deepest rift anywhere on Earth.

"...I guess that was your accomplice in the wood chipper?"

The world's largest Holstein cow.

Three legendary, living albino buffalo roaming their pastures for all to see.

A true roadside icon standing on the same plains that the herds once roamed.

This monumental sculpture that welcomes visitors to Bethany Beach is a tribute to a regional Nanticoke Indian Tribe leader.

In 1787, a group of delegates met at this very spot to drink, be merry, and ratify the Constitution of the United States.

Once a slice of Cold War-era military history, this museum is finding its future in the stars.

An ornate Art Deco tile mosaic representing Nebraskan life, both modern and prehistoric.

Baroque celebration of the end of the Great Plague of Vienna.

These markers are used to document elevation changes around the famed dam.

The arch that celebrated the completion of the Lincoln and Victory highways.

This beloved roadside attraction welcomes visitors with his signature neon smile.

The so-called "Father of Las Vegas" had the city's first telephone installed in his office in 1907.

This Nevada lake holds its titular natural pyramid and, if the legends are true, a number of dangerous spirits.

Back in 1952, you could get a mushroom cloud chaser with your atomic cocktail.

Flashy signs from Las Vegas’s past find their final resting place at this unusual graveyard.

The location where the American Revolution ended.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

The tomb was guarded by soldiers from both sides of the war, and some left their initials carved in the brick.

A museum dedicated exclusively to aircraft used in the military.