A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Qatar's oldest market can trace its origins back more than a century.

Thirteen pastel palaces in downtown Charleston add a gorgeous splash of color to the city.

One of the oldest living oak trees in the Southeast.

The world's largest fire hydrant is supposedly tornado-proof.

This psychedelic tromp l'oeil seems to be beckoning drivers to crash into a wall.

This is one really big nut.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

A natural formation that resembles a camel resting in the New Mexico desert.

Life-sized sculpture of a blue whale made of hand-recycled plastic trash.

This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.

This sculpture perfectly models the molecular structure of a drug that was never produced.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

The last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.

The first declared National Monument in the United States.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

A striking sculpture built to honor the women of the Lakota and Dakota Nations.

A fitting attraction for the corn capital of the world.

You have to love a museum with a truly dedicated focus. A focus on Superman, for example.