Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

A downtown park built on top of unclaimed graves.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

Elaborate drama imparts an appreciation for 19th century hardships.

The first declared National Monument in the United States.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

This geodesic gallery holds a collection of painted spheres that make traditional canvases look lazy by comparison.

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

A cemetery housing wild west legends in South Dakota.

This Wild West attraction is alive with glitching automatons.

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

A fitting attraction for the corn capital of the world.

Resting place of Hollywood's immortals is also site of summer film screenings.

America's most famous piece of self-built architecture.

A glittering South Asian anomaly in a wealthy Los Angeles suburb.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

This massive redwood tree has a hole in the base big enough to drive through.

This sandstone mansion was the home of two of Oregon's most important pioneers.

The magic's in the hole!

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

A bizarre house filled with an astounding array of collections.

Visitors can walk over the largest concentration of Columbian mammoths to have died from one event.

Tracks near this Texas nature site were once thought to support the Creationist belief that man and dino coexisted.