This city is located in the German state of Bavaria, specifically in southeastern Germany at the confluence of the Danube, Regen and Nab rivers. It is the fourth largest city in the state of Bavaria after Munich, Nuremberg and Augsburg, and is the political, economic and cultural center of Eastern Bavaria. It is an ancient city as old as history, as the history of the first mention of this city in ancient manuscripts dates back to the Stone Age, and in the year 90 AD a Roman fortress was built there and many other Roman monuments, some of which are still majestic to the present time, and among the most important monuments there Regensburg Cathedral, Halla Hall, The Scottish Church, Obermünst Abbey, and many more. The city is also characterized by its picturesque nature, as you will see many mountains, rivers and lakes in it. Moreover, all the tourists of this city are fascinated by the colorful houses scattered throughout, and its museums that explain the history of the city in detail.