"Puro Peru," promises the website of Los Cabos II, and this downtown restaurant delivers. Peruvian food is some of the strangest, most delicious stuff in the world — a mishmash of centuries of cultural influences thrown together on one plate. Spanish conquistadors, Arabs and Moors, explorers bringing spices from India, Italian cartographers, historic Creoles, African slaves and Asian immigrants — they've all added to the rich history of Peruvian cookery. And at Los Cabos, you can taste all of that (or most of it, anyway) every time you walk through the door. Your best bet: the $15 international buffet from 11 a.m. to 5 p.m. on Sunday, which adds a world tour to the already generous weekday buffet lunch.