In Peace Valley Park near Doylestown, Bucks County, Pennsylvania is a trail called by the name of Pooh Circle.
On Pooh Circle trail is Pooh Tree on a side creek that feeds into the North Branch of the Neshaminy Creek. Pooh Tree is an extra large and old tree that has a large hollow cavern inside. To give a sense of perspective, my height is five foot five inches and I can easily enter the opening you see in the trunk without bending down.
Here's a close-up view of the entrance into the hollow trunk.
Inside the trunk, there is easily room for several people to stand at the same time. In this and the next picture I am taking the picture from inside the tree looking up. The height of the hollow trunk is easily more than twice as high as me.
This is roughly the same view as the above photo but taken without a flash. With a little creativity, one might imagine that this picture shows a volcano with the two light areas being molten lava. Of course, the two light areas are actually holes in the trunk to the outside.
Yes, Pooh Bear might have loved this tree.