The rusting remains are visible sticking out of the waters of the Delaware Bay.

World War II bunker still standing on the New Jersey beach.

Color-coded signs direct drivers on a network of routes designed to avoid Pittsburgh traffic.

An American flag was erected for every day that passed during the Iranian Hostage Crisis.

These lush botanical gardens employ the most purrfect pest control force.

The site of the little-known Pennsylvania battle that sparked the Seven Years' War.

The only statue of its kind to commemorate Washington's beginnings as an officer of the British Colonial Militia.

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

A portion of the old Pirates stadium over which a defining home run once flew still stands even after the rest of the stadium was torn down.

"Where the ducks walk on fish."

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

Where the oil industry began.

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

This historic old movie house was the scene of one of the Blob's most iconic attacks.

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

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

Pennsylvania's own Roswell-style UFO mystery.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

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

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

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

Eccentric concrete mansion and museum designed and built by hand from the inside out.

A layered tribute to the work of mosaicist Isaiah Zagar.

A toxic ghost town sitting atop a massive coal fire.