This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

A fortress off the West coast of Portugal that dates back to 1502.

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

"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.

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

Steepest flood safety railway in the entire world.

A field of nothing but boulders which resembles a giant's gravel driveway.

A local prank turned town icon.

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

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."

Yo, Adrian!

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

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

Collection of trolley cars in the woods represent one man's attempt to preserve transportation history.

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

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

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

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

Mysterious rocks that ring musically when struck.

An outlandish shoe shaped house built by an eccentric millionaire.

This park contains a number of standing stones meant to heal and inspire.

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.