There is nothing quite like a pet-friendly tree houses to spark the imagination of child, and adult alike. Tree houses are not just for kids! Built high up in the branches of a tree, a tree house is a typically wooden structure that utilizes the shapes of the trunk and the strongest boughs to create a horizontal space in a vertical world. Tree houses can be accessed by ladders, and can be occasionally linked by suspended bridges and can even have running water and electricity. Cunning craftsmanship keeps these lofty rooms in their place, and the rewards for the climb are peace and quiet, fresh canopy air and spectacular views.