This private residence was the template for one of the most beloved television homes of all time.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

The largest permanent Monopoly board makes one of the longest games even bigger.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

The largest clock face in the United States is twice the size of Big Ben and infinitely more ad-sponsored.

A diorama of the Civil War, fought by cats.

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.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

This historic old movie house was the scene of one of the Blob's most iconic attacks.

Yo, Adrian!

A local prank turned town icon.

This elaborate towering structure was once famed for its revolutionary height.

This dramatic rail curve was once the target of a failed Nazi attack.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

Behold the rickety wooden glory of the world's oldest operating roller coaster.

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

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

The body of St. John Neumann and his collection of hundreds of relics, on display in a Philly church.

These disused steel furnaces are now haunting ruins that may one day be a national park.

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

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

A failed piece of Orientalism has become the proud symbol of a community.

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