Research missiles and rainbow auroras at the world's largest land-based rocket range.

The stickered marker pinpoints where the only maintained road in the United States crosses into the polar region.

The "Gateway to the Arctic" connects Barrow's indigenous population with the sea and its traditional industry: whaling.

An abandoned aircraft sits submerged in a lake in the Alaska wilderness.

A trading post in the North Pole where children send letters.

The telescope that discovered Neptune.

King Ludwig I's collection of beautiful women.

One of the most easily accessible examples of the rare 1960s UFO houses.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

England's only square-dimension hill horse was built to celebrate Queen Victoria's coronation.

Ancient human remains unearthed around the iconic monument.

Famously misunderstood wonder of the ancient world

This small museum in a former church crypt contains artifacts of the Elephant Man, Jack the Ripper and Florence Nightingale.

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

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

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

One part local history, 99 parts gruesome haunted house.

Eighty million natural history specimens call this gargantuan museum home.

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

One of three sites in England that house the National Collection of Arms and Armour.

The Cambridge pub where Francis Crick announced that he and James Watson had discovered the DNA double-helix.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

American soldiers discovered Europe's best one-liner at the end of World War II.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.