Lake Natron
This unique saline lake looks like it came straight out of a sci-fi movie. However, the red color is caused naturally: as water evaporates, the concentration of salts and other minerals in the water increases, attracting microorganisms that cause the water to turn red. This lake is also the only breeding ground of an endangered species, the lesser flamingo.
Lightning Strikes
It's quite rare to capture the exact moment that lightning strikes a tree, but this photographer managed to snap a photo using long exposure the second that it happened. Electric currents shot down the tree trunk and spread toward the ground, creating this beautiful (and somewhat terrifying) image. Remember, if you get struck by lightning, this could happen to you!