Best places to visit in Bonn

The Federal City of Bonn (German pronunciation: [bɔn]) is a city on the banks of the Rhine in the German state of North Rhine-Westphalia, with a population of over 300,000. About 24 km (15 mi) south-southeast of Cologne, Bonn is in the southernmost part of the Rhine-Ruhr region, Germany's largest metropolitan area, with over 11 million inhabitants.
It's 22:16 right now , with few clouds and the temperature of 17.24°C (63.032°F) in Bonn.