This shrine dedicated to the Virgin Mary is also a tribute from a mother to her fallen son.

A T. Rex statue dressed as Mister Rogers honors the children’s-television pioneer.

Pittsburgh's literal underground railroad.

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

This shop filled with oddities and knick-knacks is named for a 19th-century charlatan.

An imposing pair of sphinxes stand guard outside this Egyptian Revival tomb.

This restaurant offers a side of antiques, curios, and a bathroom chock full of owls.

A huge railroad museum with over 100 pieces of rolling stock focusing on the railroad history of Pennsylvania.

The train collection of an eccentric New England seafood mogul is now a National Historical Site.

This giant, rotating globe was built to celebrate the expansion of a company that makes steam cleaners and pressure washers.

The penultimate and final resting places of British General Edward Braddock—minus a few bits and pieces.

This Art Deco service station has been providing tune-ups and turning heads for close to a century.

Each step is a mere four inches tall, said to be measured by the stride of a woman wearing a hobble skirt.

Pennsylvania's highest point is spotted with boulders which were pushed to the surface by nothing but cold.

A local prank turned town icon.

The only geyser in the state of Pennsylvania is caused by pressure from an abandoned coal mine outside of the ghost town Centralia.

An outlandish shoe shaped house built by an eccentric millionaire.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

A toxic ghost town sitting atop a massive coal fire.

Nothing says indulgence like a 1,500-pound chocolate castle.

The last funhouse of its kind, where guests enter through the mouth of an 80-year-old blue whale.

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

The last remnants of Fort Pitt also hold the distinction of being the oldest structure west of the Allegheny Mountains.

An 18th-century Catholic church converted into an eccentric temple of music and bacchanalia.