In this commended image, Martin Broen dove into the control room of the Rio de Janeiro wreck in Micronesia's Truk Lagoon. The Rio de Janeiro was a passenger and cargo liner that sank during ...

Below its emerald waters, these tropical islands in the heart of the Pacific conceal the world's biggest underwater graveyard.

In this commended image, Martin Broen dove into the control room of the Rio de Janeiro wreck in Micronesia's Truk Lagoon. The Rio de Janeiro was a passenger and cargo liner that sank during Operation ...