20 stunning photos of underwater caves around the world

From tropical waters in Mexico to ice-filled lakes in Switzerland, these underwater caves...

A photographer is making tiny worlds out of household items while she's stuck at home

Erin Sullivan is using items like broccoli and pancakes to create the illusion of forests...

Magical photos that will make you want to protect our oceans

The oceans are home to bizarre but majestic creatures, such as jellyfish, colorful...

21 images that show how much we've reshaped planet Earth over the last century

Humans have had an unmistakable impact on Earth — one that pops out in sharp relief in...

Photos show how Facebook can fix closed eyes in selfies

Facebook researchers created an AI algorithm to replace closed eyes in photographs with...