The Pennsylvania shopping center was once the setting for the 1978 film, "Dawn of the Dead."

Once the most painted on object in the world, this short campus fence is well on its way to being so again.

Meet your friends, marry your true love, or tell your enemies to kiss your butt under this historic Pittsburgh timepiece.

South Philadelphia is home to Keith Haring's only surviving in situ collaborative public mural.

Long hidden under grime, the politically radical murals of a little known Yugoslavian master are finally getting their due.

This elaborate towering structure was once famed for its revolutionary height.

An 18th-century Catholic church converted into an eccentric temple of music and bacchanalia.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

This church in Pittsburgh is home to the largest collection of religious relics in North America.

This little museum in the town where zombies were born celebrates the living dead.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

These ruins of a pre-Columbian cliff village are among the most beautiful and well preserved in New Mexico.

An ode to South Dakota's state fish.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

A place where the laws of nature seem to have gone completely berserk... but of course haven't.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

This giant pocket watch is the third iteration of a local landmark that has been standing just off the Santa Fe Plaza for over 100 years.

Apparently, the whole cosmos emanates from this plain concrete tower.

The final resting place of the most famous outlaw in the Old West.

From a T-rex to a teapot, a cast of artificial fossils illustrates New Mexico's history.

This sculpture perfectly models the molecular structure of a drug that was never produced.

The only Native American comic shop in the world.

Thousands of pieces of art have been carved into the rock at the site of an ancient volcanic eruption.