A 150-meter alley where the corrugated-metal houses are painted yellow, red and blue, as if someone had emptied the whole palette. Caminito is the soul of La Boca: tango dancers in the street, paintings hanging from the balconies, and Boca's stadium just a few blocks away. Touristy, sure — but it's impossible not to fall for the neighborhood that birthed tango and Buenos Aires's football passion.