That tower could've been nice but I stayed grounded today. There was a HUGE music festival this weekend so I pretty much enjoyed that as I wandered from Republica to some other square to the Mercado Municipal to the Cathedral. I stopped to enjoy the musical performances at a couple locations along the way and lunched at the Mercado. By the time I was done with the Cathedral I was done.
Back at the airport now and "enjoying" the rather sub-par RCC waiting for the flight to ORD.
Thanks to all for the suggestions. I'll write up a more coherent version with details when I'm back home and have slept in a real bed again.