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 06:50 right now , with light rain and the temperature of 3.7°C (38.66°F) in Bonn.