Zagreb is smal but really beautiful town. Have nice park Maksimir with zoo, lake Jarun and Bundek also its a nice park Zrinjevac in midle of town, near you can see Jelačić square and close its Kaptol with catedhral you must see also croatian nacional theatre like and museum Mimara. If u go toward old town its very nice Tkalčićeva street with some restorants and caffee bar. Old town is famous cos curch st Marco from 13 century also have and worlds famous museum of broken relationships its nice walk on Strossmayer bouleward and from there u will see cable care and will have still one nice look on Zagreb.