HMS Alliance is a Royal Navy A-class, Amphion-class or Acheron-class submarine, laid down towards the end of the Second World War and completed in 1947. Over her 28-year career, she held the world ...

After more than two decades on the Delaware waterfront, it’s being prepped in Mobile, Ala., for its final (assisted) cruise and new life as the world’s largest artificial reef ...

When the ship slipped beneath the Atlantic, it had never turned a profit. Yet the moment it hit the seabed, its value began to grow. Over decades, failed expeditions, insurance payouts, salvage ...