Symbolic attempt to overcome the issues of life.

A stunning, abandoned limestone quarry in southern Indiana provided the stone to erect the Empire State Building.

This Philly landmark has a giant butterfly pavilion, three floors of insect displays, and withstood a $40,000 heist.

South Philadelphia is home to Keith Haring's only surviving in situ collaborative public mural.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

The Pennsylvania landscape depicted by a quarter mile of mosaics made from used road signs.

The oldest surviving botanic garden in the United States.

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.

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

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

Mysterious rocks that ring musically when struck.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

A rare view of a preserved Victorian science museum.

A virtually untouched "home on the hill" for the flora and fauna of Rhode Island.

Last residence of H.P. Lovecraft featured in his story "The Haunter of the Dark."

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

This Dutch-styled residential building was originally a cocoa company's World's Fair showpiece.

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.

A museum dedicated to the quirky and colorful world created by Springfield's favorite son.

35,000 grape hyacinths flow like water down a garden hill.

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

The often-overlooked ruins of one of the first buildings designed by famous landscape architect Frederick Olmsted.

An eccentric inventor's castle home with its own indoor weather system.

The only structure left with direct ties to the Salem witchcraft trials of 1692.