This raised bulls-eye visible from space was the subject of an intense geologic controversy.

A striking, menacing sandstone peak towering above a landscape that's equal parts Mordor and the Moon.

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

A tunnel with windows, so you don't miss out on the impressive views.

Dramatic river bend surrounds a natural red-rocked pedestal.

A town honors its legacy of traditional American Indian pipe carving with one gigantic pipe.

See how Laura Ingalls lived on the Minnesota prairie.

This massive roadside mascot was the first version of the giant to illustrate his butt.

For just a few bucks, this Iowa funicular will let you feel like an 1800s fat cat.

A tribute to the twin ideals of religion and patriotism, built by a Catholic priest from rocks, glass, and innumerable found items.

This long unused shot tower on the Mississippi remains a point of pride for a small city in Iowa.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

A spiritual vortex among the red rocks in Sedona.

Semi-recognized center of the world, with many oddities.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

A hand-built folk art installation covered with messages of God's love.

Erroneously called the world's tallest flagpole, this landmark is devoted to "good neighborliness."

San Diego's most historic and haunted home.

One of the largest trees of its kind in California.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

North America's largest accredited model railroad museum.

A hidden courtyard houses early 20th-century plaster masterpieces.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

Oldest building in California still in use.