The Hohokam built many things: great mounds, vast networks of canals, huge buildings, several different kinds of dwellings, work areas, and storage structures. One of the most interesting features that existed throughout Hohokam country is ballcourts. Although the ballgame fell out of favor before the time of my "Tales of the Watermasters" novels, not all of the ballcourts wound up being filled with trash or otherwise repurposed. I use one of the relic ballcourts as a setting for a scene in the first volume, Swallowing the Sun, which should be available for sale in a few months.
Archaeology Southwest has published a summary of what is known about the Hohokam ballcourt. The illustrator, Rob Ciaccio, has taken research and produced his vision of the Hohokam world, much as I have done for my novels.
I had my mother teach me to read when I was four, and I've never stopped. Now I can play with words all day long... it's the best job in the world.