The Botanical Garden (Botanicki Vrt) was originally built as a research area for Zagreb University's Faculty of Botany.
Encompassing some 50,000 square meters, it's part of a series of parks, which form the city's "Green Horseshoe" in Donji Grad.
On the grounds are an arboretum, two ponds with numerous aquatic plants, an ornamental bridge, and some 10,000 different plant species, making for a pleasant escape from the city and a great place to relax or take a walk.