Oak Ridge, Tennessee, sprang up during World War II. But it wasn’t until 1945 that people learned of the city’s deadly purpose.
Plokstine in Lithuania was one of the Soviet Union’s most secret nuclear missile sites – until the Americans spotted it in 1978.
In 2010 16-year-old Abby Sunderland attempted to circumnavigate the world in her boat. Eight years later, the vessel was found.
There’s been a fire burning underneath the Pennsylvania town of Centralia since 1962 – and it shows no sign of going out.
A century ago, San Diego paid Charles Hatfield to change the weather. But the outcome was more extreme than anyone could have predicted.