Spanning an elevation of 160 feet and containing 388 steps, this is Seattle's longest staircase.

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

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

Yo, Adrian!

The first American department store, and home to the largest operating musical instrument in the world.

This bar named after the world's first mixed cocktail was home to one of New Orleans' most notorious politicians.

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

Banksy gives themself artistic license with this piece of London street art.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

"Mock all and sundry things, but leave the saints alone."

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

Narrowest house in Boston.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

One of downtown Berlin's last reminders of its Communist past.

A Civil War fort in the middle of Washington, D.C. has been swallowed by a forest.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

The walls of the iconic dome are hollow and have a secret stairway.

From a neon Rapunzel to a bike traffic meter to a street fair color scheme, the most opened drawbridge in the US is a veritable art gallery.

This historic building provides a powerful glimpse into the lives of Japanese Americans forced to relocate during World War II.

This popular bar has been blurring the line between normal and edgy for more than 75 years.

An ice cream parlor chain that caters to vegans and pinball fans equally.

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