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

This Philly landmark has a giant butterfly pavilion, three floors of insect displays, and withstood a $40,000 heist.

Locals call this magical moss-covered walkway the "Emerald Path."

A daily replay of the experiment that proved the rotation of the Earth.

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

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

North America's oldest quarantine facility was built in response to Philadelphia's 1793 yellow fever outbreak.

A glittering Thai Buddhist temple in suburban Pennsylvania.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

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

This museum boasts a bucket of teeth and tells the tale of a 20th-century dental circus.

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

This eccentric mansion museum holds a impressive collection of rare and automatic instruments.

Pennsylvania's own Roswell-style UFO mystery.

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

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

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

The ruined remains of a coal mining ghost town are hidden within the woods.

Enjoy a slice while browsing the world's largest collection of pizza memorabilia.

A macabre farm reserved part of its 222-acres for dead bodies, all in the name of science.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

The graffitied ruins stand hidden within the Pennsylvania woods.

Yo, Adrian!