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.

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.

California's Redwood National Park is home to some of the largest trees on earth. A particular hike will bring you up close ...

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 ...

The university said the tree is longer than a standard football pitch Scientists in the UK and Malaysia say they have discovered the world's tallest tropical tree measuring more than 100m (328ft ...