Haunted Victorian house that inspired a legendary "Ghostbusters" court ruling.

The home of one of America's most wealthy industrialists is now a historic site that remembers a more decadent time in the country's history.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

The taxidermied remains of Charles Dickens' pet raven, which helped inspire one of Edgar Allan Poe's most famous poems.

Dr Barnes' $25 billion private collection of art and arboretum.

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

The world's third-largest crystal sphere has sat in the Penn Museum since 1927 with the exception of one outlandish theft.

The oldest surviving botanic garden in the United States.

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

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

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.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

The final resting place of two members of the infamous Doan gang, notorious outlaws and Revolutionary War Loyalists.

A historic covered bridge is but one example of an oddly prevalent American urban legend.

The headquarters of the Fraternitas Rosae Crucis, complete with Rosicrucian pyramids, all in the Pennsylvania woods.

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

The residents of this ominous-sounding street in Pennsylvania liked its name so much they fought to keep it.

A glittering Thai Buddhist temple in suburban Pennsylvania.

A modern ghost town whose inhabitants were driven away by the growth of nuclear power.

This giant disembodied horse head seems to balance impossibly on its nose.

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

A drab two-story office space in Delaware is a hidden tax haven for Hillary Clinton, Donald Trump, and over half the Fortune 500 companies.

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

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