The longest escalator in the Western Hemisphere takes over three minutes to ride down.

An astounding collection of medical specimens, including bits of President Lincoln.

FDR's Art Deco hospital tower was hopelessly inefficient.

The fairy tale castle of the "fairy-tale king."

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

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

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

A four story, football field-sized, nine-grotto creation made of shells, minerals, and rare stones.

Famously misunderstood wonder of the ancient world

The prototype for all Nazi concentration camps.

The world's tallest church tower reveals a spectacular view to anyone up to the task of climbing the daunting staircase.

The most loyal of little dogs, or a Victorian era publicity stunt?

Vast fan-shaped British cemetery honouring American servicemen lost in World War II.

One part local history, 99 parts gruesome haunted house.

A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

Largest gathering of hobos in the country has been meeting annually since 1900.

Millions of dollars worth of sculpture decorate this Iowa city center.

This zombie-themed restaurant stands out in the heart of corn country.