The Vastseliina Castle in Estonia: The mighty stronghold, now in ruins, was built by the knights of the Livonian Order
Calico, in San Bernardino County: Miners, gunslingers, and brothel-keepers were all drawn there by the California Silver Rush
Vogelsang, East Germany: How a bucolic village became a Soviet nuclear missile base with warheads pointed at NATO nations
In 19th century, the mysterious Williamson Tunnels were constructed beneath Liverpool by a man who might have been planning for Armageddon
An Atomic Age for kids: Nuclear optimism in the 1950s spawned toys that promised to be a “seething scientific creation,” with some actually containing radioactive elements