A semi-scholarly approach to sex.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

The final resting place of President Chester A. Arthur and hundreds of others from Revolutionary War soldiers to poets, politicians, and painters.

This giant monument of the RCA mascot is a beloved fixture in Albany, New York.

A 19th-century architectural wonder designed by the "father of the skyscraper."

This historic Rhode Island mini-cemetery features a number of headstones run through with mysterious holes.

A toxic ghost town sitting atop a massive coal fire.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

The largest clock face in the United States is twice the size of Big Ben and infinitely more ad-sponsored.

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

A quiet, gothic haven nestled between Pittsburgh's Squirrel Hill and Point Breeze neighborhoods.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

A monument to the “unrecognized dead” of the tragic 1876 train crash.

The Pennsylvania landscape depicted by a quarter mile of mosaics made from used road signs.

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

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

This spot memorializes one of the greatest plays in NFL history, unless you happen to be a Raiders fan.

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

Ghost stories surrounded this “castle,” the only structure from a huge mansion that was never built.

"Where the ducks walk on fish."

The oldest remaining authentic Putt-Putt course that Donald Clayton created in Ohio.

This public space is speckled with the eerie remnants of a defunct amusement park.

Rows of 19th-century brick ovens used to process coal into coke form the center of a wooded park.