A library built during San Francisco's pioneer times is a student's retreat, bibliophile's sanctuary, and chess player's delight.

One of the greatest maze designer’s greatest mazes.

The longest hedge maze in the world.

Modeled after the labyrinth in Chartres Cathedral, this small-town Indiana memorial labyrinth sits half a world away.

Plot your trip through the city on the sidewalk.

Obelisks and stone pineapples in the Irish countryside.

View the California coastline (and the home of Barbara Streisand) inch by inch with stunning, government-sanctioned aerial photography.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

The monster at the center of the Darwin Center Spirit Collection.

NYC's legendary underground network for bovine transportation.

A hyper-luxurious, 12,000- square foot home might be buried beneath Queens, still waiting to protect you from nuclear missiles.

Named the fifth most beautiful building in America in 1885, this former courthouse boasts the best view in the Village.

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

This innocent-looking townhome is actually a subway exit.

The last municipal pneumatic post system in the world was in operation for over 100 years, and may run again.

The famous winding walk at Chartres is surrounded in mystery and myth.

The only visible piece of San Francisco's most famous shipwreck.

If New Orleans is the birthplace of the "cocktail," why does their own museum of cocktail memorabilia beg to differ?