The latest photo challenge calls for you to take and send in your best pictures of trees. Here's how to enter.

From a lookout tower with a wood-fired sauna to a sleek cabin with volcano views, these imaginative tree forts top your ...

Nestled in the mountainous terrain of Ottsjö, Sweden, just south of Åre Ski Resort, Note Design Studio has completed its ...

Spring trees begin to bloom this issue. Trees are noble works of nature, and we are humbled by their greatness, whether walking through the redwoods of California or admiring the ...