If you wanted to get into the Old Town in Krakow you had to pass by the Barbican. The Barbican is a fortified outpost and one of the few remaining buildings showing the protection line that protected the “Old Town” of Krakow from their enemies. The Barbican was finished around 1498, and it is built in gothic style. There are only three such fortified outposts still surviving in Europe today.
The Barbican has a diameter of 24 metres and it has 8 watchtowers formed as helmets. Earlier the Barbican was directly connected to the Florian gate, but today you will have to walk on foot a few meters, and then you can enter into the Old Town of Krakow through the Florian gate.