Varaždinske castle is one of the architectural monuments of the city, an example of military architecture. At the time Varaždinske castle was one of the strongholds in the fight against Turkish intervention. Here was the residence of Croatian-Slavic military district. It is a powerful strategic and military-political significance was attached to the castle until the XVII century, when the military centre was moved to Koprivnica.

By the end of the XVI century Varaždinske castle changed many owners. In 1397, the castle belonged to Herman II of Celje, who received the building from the Hungarian-Croatian king Sigismund II. Some time later, Herman also got Zagorje region and čakovec. From 1585 until 1925 the owners of the facility was family Ended. By the way, the representatives of the dynasty has held some of the highest public office in Varaždin until 1845.

In the beginning of XX century the castle housed the exhibition at the city Museum.

It is known that the oldest part of the castle is its tower in the Gothic style, and there is also information about what is already in the XV century he had the Palisades, and surrounded the construction of the trench. Presumably, the East tower and fortified walls were built around 1524.

Major changes waited for a lock in the middle of the XVI century, when the Gothic buildings he has become the embodiment of Renaissance. Reconstruction was begun in 1544 by Baron Ivan Ungnad, at that time owner of the castle. The work was accomplished by one of the famous Italian architects. The castle was surrounded by a moat with water from the Drava, and grew up around the earth embankment. Were also made about the loopholes and special platform to use heavy artillery, and a square tower in the late Gothic style was completed by another floor. The castle was also added a lot of architectural details inherent in the early Renaissance: stone buttresses in the form of Doric columns, wood and stone balustrades, balconies with arches and painted facades. Reconstruction of the castle was completed in 1575.

In 1705 the castle underwent another reconstruction, during which the bridge was built between the Northern wall and square tower, which allowed to divide the courtyard into two halves. Until 1933 the castle was surrounded by trenches, and the first plantings were planted in 1938. But this Park, which can be seen today, was designed in 1952.