The unbelievably opulent home built for an infamous newspaperman.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

This historic railway museum may have lost its passengers but not its love for trains.

Mansion and shopping center used in the 1975 film "The Stepford Wives."

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

This quarter-mile tunnel under the Bluff in Pittsburgh bends at a 45-degree angle.

Home to an eclectic collection of over 200 vintage motorcycles, Americana, and some of the most extraordinary antiques from all around the world.

Don't get it twisted: This is the oldest pretzel bakery in the United States.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

An almost life-sized elephant named Ms. Ellie greets visitors at this jumbo-themed museum.

This shrine to McDonalds' most iconic sandwich holds a 14-foot tall burger.

Pennsylvania's own Roswell-style UFO mystery.

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

This titanic java kettle is one of the many kitschy landmarks located along America's OTHER famous highway.

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

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

The universally beloved children's television figure is interred on a high hilltop in one of western Pennsylvania's oldest cemeteries.

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

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.

In which a local geological marvel becomes a quaint roadside attraction.

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.

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.