Completely renovated in 2003 and now the most modern example of its kind in Poland, the quirky Palm House is a delight for green-fingered jungle types. One of the warmest and most relaxing places to visit in the whole city, exhibits include 20 very precious palm trees and plants that have been growing here for 150 years plus a total of 4500 plants spread over three buildings. Perhaps strangest of all is the experience you feel when you look up and see bananas growing. Mind out for the meat-eating plants too, and be sure to leave your dog at home.