I agree that, in some ways, it's very much a frontier town, Amos, and think you could be right about the...

"Tijuana Cultural Center
A culture and arts center where famous art pieces go on exhibit, including paintings, photographs, sculptures, along with a wide variety of plays, symphonies, recitals, operas and ballets. It also includes an Omnimax theatre, art gallery and a bookstore" (tijuana.com).

But it was definitely a kind of park that had Aztec monuments, etc., in miniature, beside pathways..?