This towering church is home to a world-famous organ and a treasure trove of medieval art.

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.

The Grand Canyon of Texas.

A wacky, UFO-shaped house in a suburban neighborhood.

This Texas windmill field celebrates the power and majesty of the very winds that blow.

The final home of the most famous horse of the American Civil War.

When the town wouldn't allow the fast-food behemoth to build a new restaurant, they put one inside an 1850 home.

A 19th-century Gothic, castle-like statehouse by the Mississippi River.

A mysterious find dredged from Louisiana waters.

Lines from a walking song are etched into a rock in Natural Bridge State Park.

An alternate history park where the Union Army loses the war... to dinosaurs.

America's first federal monument.

The romance of early commercial flight still fills this Art Deco destination.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

This Transylvania County city is home to a rare white squirrel population that is descended from an escaped carnival animal.

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

Bubbling up from deep underground is the warm crystal clear water that fills the Warm Springs Pools, America's oldest spa.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

The walls of the iconic dome are hollow and have a secret stairway.

Known as one of the most climbed mountains in the world, this barren peak is permanently bald thanks to an anti-wolf fire.