The Mayan’s had not invented the rounded arch, as you can see in this passageway in the ruins of Coba, which made it harder to span a long space with a stone roof. Most buildings roofs were thatch.
I am the host of the Amateur Traveler. The Amateur Traveler is an online travel show that focuses primarily on travel destinations and what are the best places to travel to. It includes both a weekly audio podcast, a video podcast, and a blog.