Long hidden under grime, the politically radical murals of a little known Yugoslavian master are finally getting their due.

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

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

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

There aren't too many operational funiculars around, but Pittsburgh has two!

A beautiful oddities shop crammed with strange and morbid curiosities.

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

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

The oldest surviving botanic garden in the United States.

This Old Testament garden features 100 plants from biblical times.

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

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

The first American department store, and home to the largest operating musical instrument in the world.

A museum dedicated to the strange and extravagant costumes and memorabilia of the mummers, a tradition older than Philadelphia itself.

This church in Pittsburgh is home to the largest collection of religious relics in North America.

In the early 1800s, surgery was also a show.

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Dr Barnes' $25 billion private collection of art and arboretum.

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

One artist's love letter to his city and its citizens plays out across dozens of bright murals painted on the sides of decrepit buildings.

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