This private residence was the template for one of the most beloved television homes of all time.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A blacklight mini-golf fever dream pays tribute to the iconic rock band.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

Experience a charming 1930's version of "infotainment."

One of America's first dinosaur parks gives a window into Depression-era paleontology.

A place where the laws of nature seem to have gone completely berserk... but of course haven't.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The first declared National Monument in the United States.

The world's largest Holstein cow.

One man's quest to save his town with a trail of record-breaking sculptures.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

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

London's smallest police station is barely the size of a phone booth.

Hear the quietest sound from across the dome.

Eighty million natural history specimens call this gargantuan museum home.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

A classic carnival ride that was carved to be untouchable.

A small Montana town commemorates the dog who waited at the train station every day for his owner to return.

A classic mystery spot complete with spots that are said to make you shrink or grow when you stand on them.