This ruined quarry once produced the distinctive red sandstone used for construction projects in Washington, D.C.

One of the only memorials dedicated to journalists who died in combat.

This Maryland farm is known for its amazing corn mazes and its 30-foot junkbots.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

Winding country roads in eastern West Virginia lead to an extraordinary place populated by fiberglass giants.

Over 100 concrete munitions bunkers are all that remain of a Pennsylvanian village seized by the US government.

Nonprofit art center that promotes outsider, intuitive, and self-taught art.

The palatial McDonald's that inspired Wesley Willis.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

This once-palatial plantation may have been the site where a draft of the Declaration of Independence was written.

Outsider art meets paleontology at this roadside reptile repository.

The flower-shaped temple in Virginia aims to transcend the boundaries of the world’s religions.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

This maze-like slot canyon is a unique gem within an already fascinating geological area.

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

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

Smack in the midst of coal country, this collection provides a peoples' history of Appalachian miners' heritage.

A cult archaeology conspiracy theory claims these West Virginia petroglyphs were written by Irish monks in Ogham.

This California artist's front yard acts as a gallery for his unique, scrap metal animal sculptures.

The world's largest fully steerable radio telescope.

Home of a 28-foot tall stalagmite known as the War Club.