One girl said something about how, and I (loosely) quote: "Guatemala City is bigger than New York City."
Guatemala City: 1.1 million city; 4.1 million metro
New York City: 8.4 million city; 23.5 million metro
The worst part is that the professor agreed with what the girl said because my professor legitimately had no idea and just assumed this girl was correct. It hurt me soul.