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

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

This controversial depiction of the "Founder of California" looks as though it was sculpted from mashed potatoes.

This ultra-modern California span is actually a titanic solar clock in disguise built by famed architect Santiago Calatrava.

This abandoned sea fort has become an accidental bird sanctuary.

This dramatic rail curve was once the target of a failed Nazi attack.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

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

The oldest house in Manhattan is now a museum that remembers the home's sordid history of scandals, vice-presidents, and ghosts.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

Shoot for par over the bodies of the dead on this cemetery-cum-golf course.

This bright yellow relic is the final survivor of a short burst of seashell-shaped petrol pumps.

This little replica of Lady Liberty provides a bit of NYC in a Japanese city.

A giant scale model giving a sneak peek at what urban planners see for Shanghai by 2020.

This giant head is all that remains of a once proud statue that survived an earthquake but not a fall off of a wagon.

A strangely angled West Village home is the only monument to an explosion that took the lives of three American revolutionaries.

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.

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

This legendary "evil" doll has been haunting the citizens of Key West for over 100 years.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.