STRUCTURES quiz - what is the purpose of this structure in Mexico City?

STRUCTURES quiz - what is the purpose of this structure in Mexico City?

Continuing the reboot of STRUCTURE questions that were fairly popular... with a few suggested changes.

Every day, I'll try to post a picture of a Structure somewhere in the World. Your task is to name the Structure and tell what its purpose is... bonus points for being more specific. The answer will be given the next day.

This is intended to be fun.

If you really don't know anything about this, post a funny answer of what you think about it.

If you have the right answer, you get a Like. If you have the funniest answer, right or wrong, you get a MHO, one for girls, one for guys. If no one has a funny answer, then the best answer gets a MHO, one for girls, one for guys.

Today's structure is located in Mexico City, the capital of Mexico. Can you tell us its name and why it exists? As a Bonus, can you tell us some interesting things about it?

Updates
1 y
This is the Monumento a la Revolución in Spanish, Monument to the Revolution in English. It commemorates the Mexican Revolution. It also functions as a mausoleum for the heroes of the Mexican Revolution of 1910.
STRUCTURES quiz - what is the purpose of this structure in Mexico City?
Post Opinion