This list is “Things The US Should Import: The Green Edition.”
Plant walls: I saw many buildings in Bogotá covered in plants. They are visually interesting and beautiful. The photos show the outside of an office building and the inside of a restaurant. Bogotá gets pretty cold at night in the “winter” (which is in quotes because Colombia does not really have distinct seasons), so I know we could do this in many parts of the US.
Plant arches: These are from a long, narrow park near where I lived in during my first three weeks in Bogotá. I appreciated walking through them every day on my way to—and especially on my way home from—the TransMilenio station. My Spanish school also had a few to the side of the building.
Public bicycle parking areas: The photo shows only half of the bicycle parking area at a large mall. It is located on the second floor of the parking garage. (Pushing my bike up the ramp with the cars was a little nerve wracking.) Best part? It is free. There are attendants on duty who park the bicycles, and you can only retrieve your bicycle with a ticket. Very safe.
Motion sensitive lights: This one is pretty self explanatory. Specifically, almost every apartment building I visited has motion sensitive lighting in the hallways. I know this exists in the US, but it seems to be more widely used in Bogotá.