There is not an exact answer, but I believe it is millions.
Answer:
Prevent ourselves and others from scribbling on the walls.
Participating in the regular Cleanliness Drives.
Being a part of the 'Adopt a Heritage' initiative.
Spreading awareness around about these monuments and their importance.
Explanation:
No, because there would not have been a larger rush to finish the project
Answer: The First Amendment protects your right of freedom of speech and the right to peaceable assemble.