Plaza Serrano and the surrounding streets are where everybody goes out for the night in Buenos Aires. But instead of (solely) drinking malbec or eating choripan, you should come to Lado V for vegan food like mushroom tacos and a lentil and carrot burger—oh, and also to dive into a ballpen surrounded by neon lights. It might sound like a vegan McDonald's from the ‘90s, but this spot has good food and is extra fun, even if it is a bit gimmicky.