Everything you always wanted to know about borates is here.

The oldest place in Hartford is a cemetery with thousands of bodies stacked beneath the grass.

This steep cable railway has been hoisting passengers in the heart of Québec City for over a century.

Made from trees and then abandoned, this fence is still growing along a path in Germany.

Salt is slowly eating away this abandoned saltworks town in the desert.

This rare female version of the Muffler Man has its clothes removed each summer to signal the start of pool season.

The air force base preserves its scars from the Japanese attack on Pearl Harbor.

Bored potato-guarding Nazis etched their thoughts onto a brick storage building in Copenhagen's Meatpacking District.

Thousands of slain Soviet soldiers are buried within the shadow of this enormous obelisk.

The pits used to load the nuclear bombs onto the aircraft that dropped them over Hiroshima and Nagasaki at the end of World War II.

A futuristic hovertrain is parked unceremoniously alongside a nondescript road.

A tiny museum in Esperance, Australia, displays a bunch of space debris from NASA’s Skylab.

Beautiful Victorian buildings from L.A.'s forgotten architectural past.

A collection of early 19th century trams set in a reconstructed period village.

This nearly abandoned plantation was once witness to an eclipse that proved Einstein's theory of relativity.

This frozen-in-time summer home outside Moscow provides a look at Russian life in the 1950s.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

A half-acre utopia in the New Mexico desert features a graveyard, a game of horseshoes, a library, and a mailbox.

This bridge made famous in a novel and on-screen wasn't actually built over the river Kwai.

Traversing steep Alpine slopes, this engineering marvel is one of the longest and highest funiculars in the world.

A visionary, futuristic sculpture in Los Angeles that never met its extraterrestrial potential.

Chicago’s incendiary role in the labor movement.

These unassuming lighthouses have seen the first reading of the Pledge of Allegiance, the first wireless transmission, and more than one mystery.

The abandoned mine where American troops discovered a treasure trove of art and artifacts hidden by the Nazis.