Socotra Dragon Trees
These bizarre looking evergreens growing on the island of Socotra off the coast of Yemen might leave you feeling like you've landed on an alien planet. Even stranger is the dark red resin that oozes out like blood when they're cut, which is why they're also called dragon blood trees. With their huge, densely packed upturned crowns that resemble inside-out umbrellas or oddly shaped giant mushrooms, Socotra dragon trees are uniquely suited for arid conditions. Unfortunately, they're also endangered due to human development and because climate change is drying out the island.