Photographer Thomas Peschak comes across a hammerhead that's lost its life to the shark fin-trade on the streets of Oman.

A Croatian diver builds an underwater wine cellar in the Adriatic Sea.

Ocean Sole is a nonprofit that recycles flip-flops into art.

Boyan Slat, 23.

The interactive National Geographic Ultimate Explorer centers are indoor interactive arenas that are coming to the U.S. soon.

The wrecks of the HMS Terror and Erebus have been found after disappearing during an ill-fated expedition to the Arctic in 1845.

A journey across the Gulf Stream in the Yamaha 212X lands this crew in paradise.

Watch the incredible footage of massive Australian giant cuttlefish as they mate and migrate.

New Netflix documentary "Chasing Coral" goes above and beyond to show effects of climate change that are happening now.