The Trenčin region is located in western Slovakia on the border with the Czech Republic, and the longest Slovak river, the Vah, represents its central axis. The center of the region and its largest city is Trenčín, which is famous for its many international exhibitions. The region is also famous for its mineral and thermal springs used in treatment, and a distinctive group of the most visited and most beautiful historical and archaeological monuments in Slovakia are spread throughout it, which are considered witnesses to local history.