Compare the Mayan civilization to other civilization (Technology)

In the technology part, Mayan civilization is really different than other civilization. Their buildings were like a pyramids in Egypt, but more cool. Mayans use different way to built the pyramids. Maya architecture started with a simple temple. The structures were so tightly built that centuries later it was impossible to slip a piece of paper in between the limestones. And Maya had mathematic and calendar. There is some symbols to show the numbers. This is the thing other civilizations didn't have.  

For their calendar, they used their stairs of temple to calendar the days. It is similar to Egypt civilization. But not same!!