Iceland's largest lagoon is home to stunning multi-colored icebergs.

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

Medicinal spa created with the discharge from a geothermal energy plant.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

Originally built for London’s cab drivers, this bright green hut now serves anyone a hot drink or meal.

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

The first tunnel to be dug beneath a river, repurposed as an art and museum space.

The London pub overlooks where the Mayflower was moored before setting sail for the New World.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

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

Scattered throughout London are ancient remnants of the city's former bounding wall.

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

Banksy gives themself artistic license with this piece of London street art.

A century and a half of research in the sciences and natural history, still going strong.

San Francisco's newly reopened hands-on science museum.

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

Model Trains and Much More in Hamburg.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

Children's playground hidden under a big pink and blue cap.

Three-story concrete ram with a permanent gift shop.

A small, but award-winning beach known for its literally spotless reputation.