Natural and human made structures

During a recent visit to Bogota's botanical garden at the west of the city, I took several pictures from which I want to share a sample in this blog. The first one is this view that combines vertical structures made by man with those natural made represented by the palm trees. Altough palm trees are related with hot tropical climates, the ones showed here grow at 2650 m, in a cold climate, but they are still tropical.