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

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

Peek through the gates at this oasis from the city, full of Old English charm.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Mysterious 500-year-old tapestries depict a unicorn hunt.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

A crumbling hospital from the 1850s on Roosevelt Island.

This beloved marketplace mascot poops money and grants good luck.

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

Mural made of 100,000 pieces of hand blown glass, and one of the largest glass murals in the US.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

Yo, Adrian!

An Irish Memorial commemorating those who perished due to potato blight.

A 1,100-ton train fell through the floor in 1953. Workers got it patched up in just 72 hours.

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

D.C.'s first central library was born out of a chance encounter with the philanthropist whose name it bears.

Largest Roman Catholic church in North America.

This granite rock face is named for the magnificent reflection that occurs when the sun hits it just right.

Nine limestone rock stacks on Australia's "Shipwreck Coast."

An unphotographable nightly march of tens of thousands of "fairy penguins" from sea to shore.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

A precariously balanced rock perches on the edge of a cliff created tens of thousands of years ago by glacial erosion.

This historic, palatial theater is now one of the world’s most beautiful bookstores.