An encyclopedic collection of mammal penises.

The largest whale museum in Europe allows visitors to walk among life-size giants.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

There aren't too many operational funiculars around, but Pittsburgh has two!

This permanent exhibition celebrates the finest of our heartless automatons both real and fictional.

38-story baroque tower reflecting Detroit's rise, fall, and possible rise again.

The concrete shell of an industry giant remains as a playground for graffiti artists, auto scrappers, and paintball warriors.

Enormous small-business mecca in the Midwest, serving dozens of artists.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

A small car graveyard sits in the shadow of the famous Cadillac Ranch.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

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

Built by prisoners of war, the largest small-scale model ever built includes eight miles of tiny streams that now sit abandoned.

A modernist landscape of water and sci-fi concrete.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

The story of Two Guns, Arizona could easily be described as a Shakespearian tragedy on Route 66.

A pair of giant roadside arrows are all that remains of a former Route 66 trading post.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

This sanguine boulevard was named after a deadly cowboy bar fight.

See massive fossils that are over 200 million years old in northeastern Arizona.

An acoustic anomaly with a mysterious cause sits in the heart of Tulsa.

This highway overpass was named after the tragic disappearance of a young mother who got mixed up with the wrong people.

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.