Did you know the world's tallest living tree is in Redwood National Park? Before you start packing to check it out, you should know it's illegal to hike to it.

To help spread the holiday cheer, we've rounded up some of the world's largest ... but a Christmas tree at an outlet mall in Phoenix, Ariz. holds the title as tallest fresh-cut tree in America.

A group of scientists has found the world's tallest tree, a towering specimen the size of a 25-story building in the Amazon rainforest, it was reported this weekend. It took the researchers After ...

In what is aptly named Tall Tree Grove reside several of the tallest trees on Earth, including the world's tallest tree ... of the main trunk. A quick comparison puts Hyperion at a height of ...