The beautiful Botanical Gardens of University of Copenhagen - (Københavns Universitet) are dating back to 1874 (It was started at 1600 at another location).
They are surely the most beautiful I've ever visited. Surrounded by the beautiful outdoor garden with ponds, alleys, fields, forests and even a flower shop, the main greenhouse also features a lot to see. The main Palm House has several climatic zones and it's 16 meters tall.
And the last but not least, the Butterfly House opened right before when we visited Copenhagen this year (29 June 2018) is fascinating! 💚💚💚