This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

The rogue roots are gradually consuming some of the historic marble grave markers.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

An alley covered with 20 years of bubble gum.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

The "lovely red Vega" of the legendary record-settling pilot.

Three hundred years of preserved Spanish colonial history in San Antonio.

Get up close to emus and ostriches, or buy their tasty meat.

Yo, Adrian!

Experience the hysteria of a 17th century witch hunt through goofy reenactments and wax dummies that should probably be burned at the stake.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

A Texas cave network is home to some of the world's most spectacular-looking and bizarrely named mineral formations.

A giant donut stands as a popular symbol of Los Angeles iconography.

Coastal dunes, site of buried Egyptian movie set and former utopian colony.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

A historic neighborhood church is reborn as a psychedelic arts collective.

A popular swimming hole that hides one of America's most deadly diving spots.