Before founding the American Red Cross, Clara Barton had a tremendous humanitarian impact by locating thousands of missing soldiers.

There's a 12-foot-tall replica of the Washington Monument hidden under a manhole nearby.

A small triangle of DC grass is the final resting place of one of Sonny and Cher's songs.

The oldest still-existing mosque in the United States sits in a remote prairie in North Dakota.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

An absolutely beautiful 200-foot stained glass installation traces the evolution of knowledge.

This quiet park's strange sedimentary spires were named after Kodak's color film.

This granite monument at the site of an ill-conceived tourist attraction is built from the same stone as the Mormon Temple.

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

Visitors to this library are in for a real-world education in modernist architecture.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

A stoic rock cairn is all that remains to remember one of the more brutal instances of frontier treachery in American history.

A Mormon place of exile in Missouri.

A hidden garden of stones engraved with scriptures, a Joseph Smith Sphinx, all carved by one man.

This museum remembers the tough Mormon trek across America through an intriguing array of artifacts.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

Golden plates containing what would become the Book of Mormon were believed to be buried on this New York hillside.

The press that first printed the Book of Mormon.

A field in which God and his son Jesus purportedly appeared to a young farm boy named Joseph Smith.

A strange rock in Chicago marks the spot where a tree once stood in honor of the 18th President.

This bronze sculpture on a former squash court marks the secret origins of the Atomic Age.

The final resting place of up to 6,000 Confederate soldiers, the largest mass grave in the Western Hemisphere.

A bloodstain from "the wound of the transverberation of the heart."

Home to a protest movement, a bombing, and a dramatic change in labor history.