“Can there be a weirder, more alienated place than [Tijuana’s] Avenida Revolución on a Saturday night? The dark side of the moon, perhaps? Yet Avenida Revolución also is the pulsing subconscious of an exciting and restless city — one of the world’s busiest, most notorious border towns.” There is plenty of illicit “fun” to be had in the new Tijuana, as you might expect, but surprisingly, the backbone of the city’s dramatic reinvention has been its embrace of contemporary art, and of the arts in general.