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

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

Pennsylvania's own Roswell-style UFO mystery.

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

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

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

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

Frank Lloyd Wright built this suburban synagogue late in life, but it stands among his most iconic masterpieces.

The highest point in Delaware is located under a trailer so this marker across the street will have to do.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

Down the road from where the Wright brothers lifted off is another flight tribute practically hidden from sight in the woods.

This high point in the Great Smoky Mountains is said to be home to the chief of all bears.

The highest point in Maryland is only accessible by hiking through another state.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

Near-constant high winds deform the trees on Spruce Knob, the highest point in West Virginia.

The childhood home of the Sultan of Swat is just a line drive away from Oriole Park at Camden Yards.

The land is home to swimming ponies and a legendary 18th-century treasure.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

The highest point in Virginia can only be reached by passing through ponies and flowers.

The world's largest public collection of PEZ memorabilia.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

This small-town pizzeria won the Hollywood lottery.

The remains of what was once the world's steepest passenger funicular.

In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.