A museum dedicated to the DEWLine—a Cold War-era radar defense system stretching across the Arctic—has sparked online discussions. The comments highlight its historical significance, eerie abandoned sites, and the tech behind this massive early-warning network.

Editor’s Note: The DEWLine was a huge, secretive project that once guarded North America from Soviet threats. Now, its remnants tell a story of paranoia and ingenuity—part military history, part time capsule. For tech and history buffs, it’s a fascinating glimpse into how fear drove innovation (and left ghostly infrastructure in the tundra).