Swedish archaeologists find 17th-century warship.

Maritime experts believe wreck is sister ship of Vasa, which sank off Stockholm in 1628. Swedish maritime archaeologists have discovered the long-lost sister ship of the 17th-century warship Vasa, which sank on its maiden voyage, the Swedish Museum of Wrecks has said.

Launched in 1629, Äpplet (the Apple) was built by the same shipbuilder as the famed 69-metre Vasa, which was carrying 64 cannons when it sank on its maiden voyage outside Beckholmen, in the capital, Stockholm. Watch the video below for more!