The highest point in New Jersey is marked by a massive, if simply named, obelisk.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

With statues of Nelson Mandela and Harvey Milk this monument has been called the Mount Rushmore of California.

A unique market that brings together various goods and cultures.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

A psychedelic labyrinth on the San Francisco bay.

A huge musical instrument played by the ocean.

A famous alternative culture epicenter and where Joplin serenaded young hippies.

The stones that traveled from Spain to eventually become a holy place for San Francisco's nature worshippers.

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

This candy-striped tower is the farthest east you can go in the United States.

A precariously balanced rock perches on the edge of a cliff created tens of thousands of years ago by glacial erosion.

This colorful theme park dedicated the official fruit of Maine serves sweet, tasty treats.

The highest point in Louisiana, Driskill Mountain at 535 feet above sea level.

A snapshot of the city's fascinating voodoo culture.

Stroll through a wonderland of stupendous moss-covered trees.

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

The world's tallest statue of an American hero.

The petroleum industry brings you the joys of hydrocarbons and largest collection of antique oil rigs in the world.

Remembering the Alamo with a full-scale replica of the 1836 city.

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

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

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