Regensburg is a city located in the southeastern part of Germany, in the state of Bavaria. It is situated at the confluence of the Danube and Regen rivers, and it has a population of around 150,000 people.

Regensburg is known for its well-preserved medieval old town, which has been designated a UNESCO World Heritage Site. The town has a rich history, having been founded by the Romans in the late 1st century AD. In the Middle Ages, Regensburg became an important center of trade and commerce, and it was a hub of the salt trade along the Danube.

One of the city's most famous landmarks is the 12th-century Stone Bridge, which spans the Danube and is one of the oldest preserved bridges in Germany. Other notable attractions include the Regensburg Cathedral, which dates back to the 13th century and is a fine example of Gothic architecture, and the Stadtamhof district, which is located across the Danube and features colorful medieval buildings.

Regensburg is also known for its beer culture, and there are several traditional breweries in the city that offer tours and tastings. Additionally, the city is home to the University of Regensburg, which was founded in 1962 and is one of the largest universities in Bavaria.