4000 year old Crowhurst Yew in Surrey. The room in the ancient tree, hollowed out around can house people. When the locals were making the room they found a cannonball embedded in the trunk, thought to have been fired in The English Civil War
Trees can take on some interesting shapes as they grow. This cypress in the Congaree National Park once straddled the stump of another fallen tree. The stump has since rotted away to leave the cypress in an interesting position. - Photo via Leo Rose
The tree of love, also called tree of life, is in fact the union of two different trees, the fig and Hasina. Usually the fig kills the host tree, but in this case the two trees live in perfect harmony.