Last summer I visited Amsterdam and a couple of hours were spent at De Horthus which is the name of the botanical gardens of Amsterdam. It was a beautiful place and well worth a visit. I liked it a lot compared to the one we have here in Lund where I live. Where ours is full of open spaces De Horthus is almost too crowded but that creates an almost jungle like effect. They also have a green house full of butterflies of which this nice looking one was a resident.