The Mary Rose was a warship with a secret compartment - Apparently.
The Mary Rose, a 16th-century English warship, was one of the largest and most advanced ships of its time. In 1545, it sank in the Solent Strait, resulting in the loss of over 500 lives. In 1982, a secret compartment was discovered on board, containing a stash of over 100 pounds of gunpowder, which was likely used to destroy the ship rather than let it fall into enemy hands. The compartment's existence was previously unknown, making it a fascinating and surprising aspect of maritime history.