Come for the pizza, stay for a performance on the world's largest theater pipe organ.

These free-roaming horses were once destined to disappear from the land.

This sanguine boulevard was named after a deadly cowboy bar fight.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

This memorial includes fragments from one of the greatest tragedies in United States history.

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

One of the final grand railway depot hotel complexes is slowly being restored to its former glory.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

Take a dip in the world's largest mineral hot springs pool.

A hotel with a rich Wild West history of miners and bootleggers.

The hallowed remains of a 900-year old Ancestral Pueblo great house.

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

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

These elusive, isolated rodents evolved into a distinct, locally iconic subspecies.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

This bridge was constructed from the remains of the first Ferris wheel.

This midcentury chapel is a bold architectural statement and a symbol of Indiana's Lutheran heritage.

This large Sitka spruce that appears to be floating in mid-air, has defied logic for years.

A walk through the historic city center, under the streets of Seattle.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

America's only nuclear missile silo open to the public.