Eighty million natural history specimens call this gargantuan museum home.

A friendly pub with a sordid past in cock fighting.

Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

A monument to the thrice mayor of London who according to lore made his fortune by selling his rat-chasing cat.

A mysterious castle built as a monument to lost love.

A pride of the state, this working museum crafts pottery mosaics in the style of Pennsylvania's earliest European settlers.

An Olympic hero stripped of his medals is buried in a town he never visited, which took his name after his death.

The famous bell was secreted away and hidden in a church in Allentown during the British occupation of Philadelphia.

Where the "World Pinball Champion” is crowned.

This historic Pittsburgh tennis complex is a rare example of natural red clay courts.

Once the most painted on object in the world, this short campus fence is well on its way to being so again.

This public park was the site of the largest civilian disaster of the Civil War.

Meet your friends, marry your true love, or tell your enemies to kiss your butt under this historic Pittsburgh timepiece.

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.

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.

The world's largest fully steerable radio telescope.

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

A quiet, gothic haven nestled between Pittsburgh's Squirrel Hill and Point Breeze neighborhoods.

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

This jail which was in service for over a century is now open for curious visitors.

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

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