The largest collection of Frazetta originals in the world.

An eccentric priest's tribute to George Washington, this chapel tells the story of the American Revolution.

This little-known Revolutionary War fort is supposedly haunted by the ghosts of its past.

North America's oldest quarantine facility was built in response to Philadelphia's 1793 yellow fever outbreak.

Surrounded by industrial sprawl, a small monument marks the site of William Penn's first landing in Pennsylvania.

This might just be the TARDIS of bookstores.

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

A scenic fort on the harbor protected Philadelphia from an attack that never came.

An unusual and eclectic collection of local historical memorabilia.

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.

This splendid Versailles-inspired mansion has the largest French-style formal gardens in North America.

One of the oldest surviving Swedish-American homes in the United States.

A blend of art, antiquities, and Americana fill this museum, surrounded by whimsical, enchanting gardens.

This local gem houses the largest collection of pre-Raphaelite paintings outside of the U.K.

This weeping, 10-foot-tall sculpture was a maquette for a 9/11 memorial.

This collection of odd proofs of concept is like taking a walk through the imagination of a Victorian engineer.

Enchanting gardens surround a derelict mansion, all hidden in plain sight behind a stone wall.

Inside this small museum resides a strange mix of miniature collections passed down over time.

A wrecked ship dating back to the American Revolution was only recently discovered off the Delaware coast.

This quaint New Jersey graveyard is an eternal resting place for thousands of beloved pets.

This Great Depression-era creation was once known as the strangest house in the world.

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

The remains of an old sawmill, gristmill and the surrounding industry dating back to the 18th century.

In 1787, a group of delegates met at this very spot to drink, be merry, and ratify the Constitution of the United States.