Picture this, but younger... it looks like the one in my old backyard: http://psych.fullerton.edu/navarick/Banyan.jpg

Gian Bayan, suitable for jungle gyms and small apartment complexes:
http://www.ventanasvoyage.com/images/Tonga-%20Fiji-%20Vanuatu-%20N%20cal%20pixs/banyan%20tree.jpg

And of course, if you look closely, you'll be able to see the barren, non-cushiony ground, with it's gloriously painful root structure here:
http://www.hootpage.com/banyan_tree.jpg