Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

This abandoned prison castle has become an imposing gallery of graffiti art.

The Internet Age began with a transmission from this biker bar.

Nursery with extensive collection of flesh-eating plants operated by the author of "The Savage Garden."

This controversial depiction of the "Founder of California" looks as though it was sculpted from mashed potatoes.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

A vast city of the dead, where the deceased outnumber the living by more than a million.

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

San Francisco's newly reopened hands-on science museum.

This shop specializes in oddities and Victorian-inspired wonders.

A psychedelic labyrinth on the San Francisco bay.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

Designed by Maya Lin, the memorial honors 41 individuals who died fighting for equal rights between 1954 and 1968.

An exotic wildlife habitat right off The Strip.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

“Live hard, ride fast, eat pizza” at this joint filled with Evel Knievel memorabilia.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

Surrounded by a hundred mile radius of billboards, Little America is a roadside attraction whose primary appeal is hospitality.

Small Nevada town embraced its designation as the "Armpit of America" with an Old Spice-sponsored festival.

A giant can of fruit cocktail is all that remains of what was once the world's largest cannery.

A classically inspired temple in Redwood City.