The last of Philadelphia's wood-paved streets is now a landmark of terrible engineering.

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

One of America's most historic homes also holds a startling literary legacy.

One man's psychedelic fence is painted with his cacophonous folk art musings on the world.

An alley way dedicated to graffiti and street art is a constantly changing street gallery.

This is the house that spite built.

This historic cemetery is filled with markers that look more like candy than was likely intended.

This piece of peacetime naval wreckage memorializes the tragic sinking of the USS Maine--an event which sparked the Spanish-American war.

Supposed Massachusetts Grave of a pre-Columbus Knight Templar.

A monument in a town outside of Boston celebrates the visits of Edgar Allan Poe.

A terrific purveyor of natural history objects and curios.

During the 19th century, you could pay for violence off a prix fixe menu on this Manhattan street.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

The grave of Mary Nasson is shrouded by witchy legends.

True to its name, this bouncy walkway may be the world’s smallest suspension bridge.

University of New Hampshire holds the documentation and artifacts of local alien abductees.

One of the few brewers in the U.S. experimenting with hop-free beers.

Once the future of underwater combat, this old sub is now open for visitors to muck around in.

One of 100 “Whaling Wall" murals painted in 13 different countries by a renowned marine life artist.

Final resting place of the two women killed on a small island off the coast of New Hampshire.

A stone memorial erected for New Hampshire's only convicted witch.

Stumps of an Ice Age forest, visible only at low tide.

A historic custom house with ties to George Washington is now a shrine to local nautical history.

Palatial mansion estate used in films including "Flowers in the Attic" and "The Witches of Eastwick."