Hundreds of children began lessons this week in Ukraine's first purpose-built bunker school, 6 metres (20 feet) below the ground to protect them from Russian drone and missile attacks. Sign up here.

The co-founder of ChatGPT maker OpenAI proposed building a doomsday bunker that would house the company’s top researchers in case of a “rapture” triggered by the release of a new form of ...

Built during the coldest days of the Cold War, the bunker was said to have been top secret at the time. Today, it’s well-known on Nantucket, and officials are thinking of turning it into a museum.