Alexander Hamilton’s creation caused quite a bit of controversy.

This meticulously extracted nervous system allegedly came from a 19th-century custodian who donated her body to science.

Unrepaired walls from a 1920 anarchist bomb attack.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

This portion of a lovely Belize beach is infested with (harmless) sharks and rays.

Stairs often replace streets on the steep slopes of this old mining town.

Mysterious rocks that ring musically when struck.

A pride of the state, this working museum crafts pottery mosaics in the style of Pennsylvania's earliest European settlers.

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.

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

This beloved marketplace mascot poops money and grants good luck.

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

One of the oldest of its kind.

The first American axe throwing club.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

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

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

Yo, Adrian!

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

A layered tribute to the work of mosaicist Isaiah Zagar.

Go surfing on this urban wave, "hacked" by local surfers.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.