We actually went to a giant mud volcano today, which was relaxing and incredible, as you went in the mud (which was warm) and you couldn't sink. It was the closest to weightless I've ever felt. However, I have no pictures of it, so here's some more gold.
It seems every city has its own gold museum in this country - that's how much gold was used here. Colombia also exports 90% of the world's emeralds, and they were pretty much as precious 1500 years ago as they are now.