Those belting out show tunes might not realize this piano bar marks the site where Thomas Paine died in 1809.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

This semi-hidden Manhattan restaurant is based out of a loading dock.

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

A crumbling hospital from the 1850s on Roosevelt Island.

Retribution for death of infamous mob boss Franie Yale was a case of mistaken identity.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

Dictionary Johnson’s favorite feline.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

A hands-off space for graffiti artists to hone and display their skills.

Rebuilt remains of a temple to Roman god Mithras.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

A monument celebrating the idea of reaching inaccessible places.

This statue inspired by Renoir's famous painting embodies the jovial spirit of Key West.

This spiny beast guards an artist's village while vying for the title of largest lobster in the world.

Some North Carolina Cherokee have been keeping their history alive for decades with a single play.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

One person's lost luggage is another person's treasure.

Live long and prosper in Tennessee.

More than five miles of underground passageways.

Once decrepit and slated for demolition, now one of the longest pedestrian bridges in the world.

An unfinished rail tunnel that has since been used to house cheese and bats.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

A bizarre roadside attraction and the first instance of miniature golf in the world.