Visit the pyramids and ruins of Mayan culture in the Yucatan peninsula. You can also read and research about it. More info here:https://www.locogringo.com/mexico/ways-to-play/mayan-ruins-archaeological-sites/
Answer:
No se puede caminar en el césped.
The answer is the third one
Answer:
yo creo que la A resume mejor la idea
The sentence is plural
Estamos is the only one that fits.