Here's one example. It's an oak tree, right at the top of an apartment building. http://www.venturevancouver.com/blog/tree-on-top-of-building-vancouver-british

Here's one example. It's an oak tree, right at the top of an apartment building. http://www.venturevancouver.com/blog/tree-on-top-of-building-vancouver-british-columbia http://www.venturevancouver.com/blog/tree-on-top-of-building... http://www.treecaretips.org/Pruning/TCI0308_p50.htm http://www.treecaretips.org/Pruning/TCI0308_p50.htm