Each step is a mere four inches tall, said to be measured by the stride of a woman wearing a hobble skirt.

Descendants of this colonial Pennsylvania family still travel from far and wide to visit the 300-year-old home of their Quaker ancestors.

The souvenir got the company’s founder out of a pretty pickle at the World’s Fair.

This massive sycamore tree has been labeled as one of the largest in the state.

Sections of the iconic limestone columns have been left uncleaned as a reminder of the city's polluted past.

Narrow gorges and deep pools created by long-ago glaciers.

Where the oil industry began.

The oldest of only three existing statues of the great novelist stands in a city he did not care for.

A preserved 18th century homestead in Western Pennsylvania marks the spot where the Whiskey Rebellion began.

The first of Lancaster's "rural cemeteries."

Dozens upon dozens of boulders engraved with scripture tell the story of one man's troubled life.

An otherwise quiet campground becomes a bustling medieval town for two weeks every year.

The site of the little-known Pennsylvania battle that sparked the Seven Years' War.

"Where the ducks walk on fish."

The home of possibly the least-loved U.S. president stands as a sort of unpopular Monticello.

Inside this 150-year-old barn turned antique shop is a vast array of items for curios hunters.

Don't get it twisted: This is the oldest pretzel bakery in the United States.

It marks the spooky spot where the bodies of two young boys were found in the 19th century.

Hundreds of protractors affixed to surfaces all over the city.

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

An ideal wedding spot that is almost too ideal.

This picturesque stream was up until recently the site of a ten story mountain of slag and sewage.

The oldest surviving presidential residence in the United States.

America's smallest national park site is the former residence of exiled Polish national hero Thaddeus Kosciuszko.