The city of Košice is extremely rich in historical monuments. Most of these historical jewels are concentrated in Košice's historical center, but there are also exceptions that are hidden underground.
In the Middle Ages, the city of Košice was enriched by a sophisticated fortification system. Only fragments, including the archaeological complex Dolná brána (Lower Gate), have survived until today. It hides part of the city fortifications from the 13th century.
The complex was discovered during the reconstruction of Hlavná Street in 1996 and 1998. The city set up a unique underground museum and was modeled on it by the museum in Verona. The Underground Archaeological Museum offers the opportunity to see the former southern part of the fortification with barbakans and a gate a few meters below the level of the present street.