North Dakota hides a $6 billion Cold War relic that lived for just one day. In 1970, workers began building the Stanley R.

A new class-action lawsuit, if successful, could require the California owner of former military munitions bunkers near Edgemont to pay more than $17 million to people who rent the so-called igloos ...

Pennsylvania hides secrets beneath its rolling hills and forests, where entire towns have vanished from modern maps. These ...

For those interested in a bit of hiking to complement the beach time, the Lanikai Pillbox Trail—officially known as the Kaiwa Ridge Trail—offers a relatively short but steep climb to a pair of old ...