With 3,000 bikes on display, the world's largest bicycle museum includes some famous rarities.

One Pittsburgh musician's decades-in-the-making memorabilia collection is on display at this rock-n-roll curio shop.

This secluded walking trail is a hidden gem of a Pittsburgh park.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

Memorials and tributes scattered across the university grounds remember a famous national tragedy of the Nixon era.

One man's real life disfigurement inspired a lasting local legend surrounding an eerie tunnel.

For decades, this waterfall remained hidden because of an artificial dam.

It may appear to be a fancy junk yard, but each item has a story to tell and a lesson to impart.

Rows of 19th-century brick ovens used to process coal into coke form the center of a wooded park.

An elegant sandstone stairway built by the WPA still connects two neighborhoods in Akron.

A record-size collection of wild-haired troll dolls tells the story of the mythical creature's roots in Scandinavian folklore.

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

First a root beer ad, then a golf course clubhouse, and finally a massive teapot.

A storybook church made from a mesmerizing medley of multi-colored stones.

Francis Julius LeMoyne built this crematory in 1876; he was the third person to be cremated here.

This California artist's front yard acts as a gallery for his unique, scrap metal animal sculptures.

This Pennsylvania cave holds evidence of the oldest known inhabitants of North America.

This moving cemetery sphere is a slowly rolling stone.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

This abandoned train tunnel has been the subject of countless ghost stories for years.

This abandoned dream castle and its cemetery look out over the city that once inspired their creation.

The spectacular collection of one of the world's best woodcarvers.

There are more than 4 million bricks inside this unofficial Lego museum in a former middle school.

Beyond the usual stories that attend old prisons, this one has deep bloody undercurrents.