A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

A faithful reproduction of Al-Jazari's enormous water clock.

A pair of club-wielding guardians stand watch over London's first public clock to feature a minute hand.

A mysterious monument meant to be a guide into "an Age of Reason" was destroyed after an apparent bombing.

With its vaulted ceiling and gilded details, this University of Washington library would feel right at home inside an old palace.

A lush Seattle garden designed by the same landscape architects responsible for New York's Central Park.

This private home is famous for appearing in the cult-classic "Twin Peaks" series.

$10,000 won in a poker game in 1884 allowed James Draughon to build this intriguing home.

This site in Caldwell County is the location where the Cherokee and Catawba are said to have entered a peace treaty.

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.

In Egypt's expanding metro area, many of the neighbors are dead.

Peace Park and the Atomic Bomb Dome.

A collection of haunted artifacts chronicles the career of the world's most famous paranormal investigators.

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

This Virginia railway overpass is said to be haunted by a serial killer in a rabbit costume.

This abandoned amusement park was built on a site with a dark history.

On Japan's Tashirojima Island, cats are king.

This monument sits at the foot of a mountain from which legend says enslaved people jumped to their deaths.

This small group of sand dunes manages to pack in a strange rainbow of colors.

The “Thumb” of Mauritius provides a 360 degree view of the entire country.

This fortified sand barrier dividing a contested territory is the longest minefield in the world.

The world's largest ship graveyard is the product of decades of corruption.

Five ancient libraries, little changed for centuries, preserve a medieval archive of Quranic lore and civic documents

A natural gas leak provides a flickering flame beneath a waterfall.