In the 19th century, this canal provided power to mills, machine shops, and other businesses in the area.

In which a local geological marvel becomes a quaint roadside attraction.

A park full of outsider art, created by college students studying outsider art.

The site of one of history's most indelible and horrific tragedies.

A fascinating community art piece created by students, teachers, and noted Philadelphia artist Isaiah Zagar.

This semi-spooky remnant of an abandoned hotel provides fantastic views.

Mysterious rocks that ring musically when struck.

A bronze monument to the infamous radio broadcast in the real New Jersey town where the fictional Martians crash-landed.

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

This strange, big-tailed beast became a Pennsylvania town's unofficial mascot.

This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.

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

A rare view of a preserved Victorian science museum.

Yo, Adrian!

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

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

A layered tribute to the work of mosaicist Isaiah Zagar.

A picturesque example of brute-force engineering conquering nature.

California's longest-running tourist attraction is a stump.

The fossilized remains of ancient California redwoods.

The largest drain hole in the world.

This unique formation appears as though an asteroid landed on the forest.