12,000 sq. ft. museum tracing erotic art from antiquity to modern times.

A wall of chewing gum moonlights as collective art.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

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

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

A museum dedicated to the alleged Roswell Incident.

Quite simply the largest tree in the world (by volume).

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

The ghostly remains of an accidental sea.

A hand-built folk art installation covered with messages of God's love.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

The rocks in this arid basin leave trails of movement behind them.

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

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

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

A museum dedicated to the history and exploration of both popular music and science fiction.

A one-of-a-kind collection of a unique medium.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

A semi-scholarly approach to sex.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.