A museum commemorating the Donora Smog, which killed 20 people in October 1948 and sparked national outrage over air pollution.

True to his word, George Swanson is buried in his white 1984 Corvette.

This restored log building was one of the first toll booths for travelers along the Northern Turnpike.

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

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

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

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

Where the "World Pinball Champion” is crowned.

This little museum in the town where zombies were born celebrates the living dead.

The pop art icon's gravesite is broadcast 24 hours a day on his museum's website.

A unique workspace where offices reside on pirate ships and inside gingerbread houses.

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

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.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

This spot memorializes one of the greatest plays in NFL history, unless you happen to be a Raiders fan.

A giant ball made from pieces of an old Jeep.

The residents of the Neighborhood of Make-Believe live without much fanfare within the Pittsburgh Children's Museum.

Despite being stolen multiple times, this civic electrician's street corner Snoopy won't be stopped.

House of vintage taxidermy and Steampunk sculptures in a quiet Pittsburgh neighborhood.

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

Its vintage camera collection gives a snapshot of the past as viewed through a photographic lens.

Within this beautiful Pittsburgh cemetery, a unique headstone bears witness to one man's eternal love for Jaws.