An emerald-green grotto just a short trip from Austin.

Ghost town with a beer-drinking goat for mayor.

An abandoned quicksilver mining town surrounded by the Big Bend parks.

The most photographed house in Maine looks good enough to eat.

The highest point in Maine is a grand gift to the state citizens that also happens to be one end of the Appalachian Trail.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

Discovered by cows, these upstate New York show caves are presented with a healthy dose of psychedelic folk art.

Come for the gun-toting hillbilly madman, stay for the ice-cream loving basketball bears.

Once the future of underwater combat, this old sub is now open for visitors to muck around in.

New England's tallest light house stands on an island with a history of cannibalism and death.

This 19th century granite fortification is one of the most well preserved forts in New England.

The first bridge observation tower in the U.S. offers one of the best views of Maine.

Turns out you can see the world without ever leaving Maine.

A giant telephone commemorates the last "crank" call ever made in the U.S.

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

The world's largest rotating world.

This tiny patch of arid sand sits in one of the greenest states in the United States.

Every plane, auto, and bicycle in this collection is kept in working order and are regularly demonstrated to the public.

For nearly 200 years the same family has harvested ice from a small pond in eastern Maine.

The highest point in Texas is capped by a big silver pyramid.

A cave's rare beauty held a cavernous secret hidden underground.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

One part antique store, one part curiosities hodge-podge.