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

An eccentric priest's tribute to George Washington, this chapel tells the story of the American Revolution.

This extraordinary Depression-era expenditure was modeled after a postcard of a Mediterranean hotel.

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

What looks like a simple quaint estate in rural Pennsylvania was in the 18th century home to a small monastic community.

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

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

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

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

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

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

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

This beloved marketplace mascot poops money and grants good luck.

The world's third-largest crystal sphere has sat in the Penn Museum since 1927 with the exception of one outlandish theft.

A daily replay of the experiment that proved the rotation of the Earth.

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

Yo, Adrian!

Dr Barnes' $25 billion private collection of art and arboretum.

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

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

This unusual lava tube spouts seawater during high surf.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

Once home to over 8,000 exiled Hawaiians suffering from Hansen's Disease.