Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

The longest non-mortared wall in the country is one man's tribute to his displaced Yuchi ancestor's five-year journey to her homeland.

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

A giant donut stands as a popular symbol of Los Angeles iconography.

Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.

This centerpiece of the Hollywood & Highland shopping center is a recreation of a long-lost movie set.

There are lots of hands and feet stamped in the cement in front of Grauman’s Chinese Theater, but Mel left behind something extra.

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

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

Oldest building in California still in use.

Experience a quartz crystal sound bath inside a storied, all-wood sound-chamber.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

The so-called "Bridge of Thighs" in Palm Springs allows nudists to discreetly cross the road.

Like a kitschy mirage in the Mojave, this eatery serves up classic 50s-style diner meals and a dinosaur sculpture garden.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

A classic Route 66 landmark that was built with scrap lumber and is held together with kitsch and puns.

This historic national park is covered in the stunning ruins of red rock pueblos.

A sharp bend in a dramatic river canyon cut through red rocks.

Most-visited and most-photographed slot canyon in the American Southwest.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

A propulsion engine testbed that paved the way for the Space Shuttle launch sits without recognition at this rocket center.

Over 75 historically themed murals grace the walls of a small Washington city.