This is the statue of one of the greatest Croatian poets Petar Preradović. It's located in the center of Zagreb on the square named after him but better known as the Flower Square.
The Flower Square is one of the most popular places in Zagreb to go get a coffee or beer and chill with friends.
But since it's currently -10 degrees Celsius, it's more likely you'll freeze than chill ;)
Enjoy,
frajer