In the ancient past, the fortress was besieged by Turkish and Kuruk troops. Today, the city is besieged by tourists with a 750-year history. There are several reasons. The floating water mill, located on two parallel boats anchored to the shore, is the only one in Slovakia. Similar facilities were built by the ancient Romans on the Tiber River, from where they spread throughout Europe. An 86-meter covered wooden bridge leads to the mill, which is another unique feature. Its length does not match any similar all-wood construction in the whole of Central Europe. The city had a turbulent history. The beginnings of settlement in this area date back to the period of Hallstatt culture. The original village of Malá Guta, located on the left side of the Váh, was first mentioned in 1268 as the property of the Archbishopric of Esztergom. Fearing the Turks, its later inhabitants moved to the other bank of the river below the flow of the Little Danube, and so today's Kolárovo found itself on Žitný ostrov. In the first half of the 14th century, Queen Mary had a castle built in these places to protect the fords and trade routes, which she called the "Castle of Peace". In a document of King Ladislav IV. from 1551, "Villa Gutta" is listed as a town with the right to organize fairs and cattle markets. The fortress was built on the site of Queen Mary's Castle in the first half of the 16th century as a defense against Turkish invasions. It was often rebuilt, besieged many times and conquered several times.