One of the oldest Christian churches still standing in the Americas, and almost certainly Mexico's oldest in continuous use.

Millions of years of erosion created the feature for which this rock formation is aptly named.

This is the cabin from which John Brown and his men launched their fateful war to end slavery on October 16, 1859.

Ruins from the Parthenon and petrified wood line the interior of one of the world's most famous monuments.

Corn-inthian columns with a uniquely American take on neoclassical architecture.

The trials and tribulations of marking Poe's grave.

This vast and otherworldly landscape is one of the largest dune complexes in North America.

Next to Salt Lake City's Assembly Hall stands a tribute to some unlikely heroes of early Mormon settlers.

A terrace reminiscent of Rome's Spanish Steps is tucked away in a little park in Washington, D.C.

Local artists have long claimed these highway pylons as a place to celebrate Mexican-American history through artwork.

This historic pink parlor keeps Phoenicians cool with homemade, retro ice creams.

One man handcrafts "the best sake made outside of Japan" in a tiny desert town on Route 66.

A monument commemorating how a frontier town got its unusual name.

A glimpse of the Pacific Northwest‘s indigenous culture in Washington, D.C.

This bronze marker acknowledges an embarrassing royal blunder.

A gift from Japan, 17th-century lantern stands among the cherry trees at D.C.'s Tidal Basin.

This roadside sculpture garden in New Mexico venerates Mother Earth and outsider art.

This unique art installation used boiler tubes from a decommissioned power plant to resemble Antelope Canyon.

This collection of Wild West movie memorabilia also claims to hold some secrets of the Lost Dutchman's mine.

After James Madison's death, his wife and former First Lady Dolley Madison lived in this yellow building near the White House.

This rowhouse doubles as one of the most photographed spots in the nation's capital.

The only female equestrian statue in Washington, D.C. is a 15th-century French heroine.

This oversized flute-playing Ancestral Puebloan deity is also a landmark of Southwestern kitsch.

This American Civil War-era fort still stands near the border between Washington, D.C. and Maryland.