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

This colonial mansion has been home to a staggering number of American historic figures.

Pittsburgh's literal underground railroad.

Intricate storybook scenes are tucked inside these shadow boxes, which are tucked inside a library in the Pocono Mountains.

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

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

One of the oldest log cabins in America is one of the last of its kind this historic Swedish dwelling remains a piece of living history.

The only geyser in the state of Pennsylvania is caused by pressure from an abandoned coal mine outside of the ghost town Centralia.

What looks like a simple quaint estate in rural Pennsylvania was in the 18th century home to a small monastic community.

A quirky collection of outsider art made from automobile parts.

The last street in Pittsburgh that's paved with wood.

This semi-spooky remnant of an abandoned hotel provides fantastic views.

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

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

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

This titanic java kettle is one of the many kitschy landmarks located along America's OTHER famous highway.

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

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.

Collection of trolley cars in the woods represent one man's attempt to preserve transportation history.

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

A beautiful oddities shop crammed with strange and morbid curiosities.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

A rare view of a preserved Victorian science museum.