Even the Maya civilization has fell and it’s was forgotten for a long time but knowledge and artifact that they made is very helpful. Such as their calendar or their knowledge about astronomy are used until the present day. The Maya architecture such as pyramid and palace become to tourist attraction.
However, there are so many thing about Maya that archeologist never understand and can’t explain by science such as the real reason that make Maya civilization has fell. Their sacrifice is still mysterious too. But It’s doesn’t matter what is their secret, It’s about what their left for the world.