Bonn's central location in western Germany makes it the perfect base for a number of daytrips throughout the nearby area. A few places that you should try to include in your itinerary include:

Cologne -- worthy of several days itself, Cologne has several sights that should not be missed. Key among these is the Dom , a huge cathedral in the Gothic tradition. Among the cathedral's collections is the Shrine of the Magi, which holds relics of the three kings of Biblical fame.

Bruhl -- several wonderful attractions are located in nearby Bruhl. For those with royal desires, hit up the Schloss Augustusburg , a castle built in the Baroque style during the mid 1700s. If the kids are in tow, hit up Phantasialand , an amusement park that delights visitors both young and old. If modern art is your thing, then plan to visit the Max Ernst Museum (Ernst was born in Bruhl).

Ahr Valley -- the nearby Ahr Valley is the perfect destination for those with an affection for red wine. The Ahr Valley is home to the Red Wine Hiking Trail, a 35 km trail throughout wine country.

Königswinter -- a small town on the Rhine which can be reached directly from Bonn by Tram 66 or by S-Bahn.  There are many small shops and Restaurants. The main street leads up towards the Drachenfels Mountain.  At the top of the mountain is a viewing point and some castle ruins, and about midway down the mountain (accessed via walking or tourist train) is Schloss Drachenburg. At the top of the town just over the main railway line is the tourism office and the Drachenfels Rack Railway. The train makes two stops - first at Schloss Drachenburg, then at the top of the mountain.  There is a small shop at the top selling chocolates and drinks and the usual souvenirs. During summer there is a boat trip from  Bonn Mehlem which would be an enjoyable trip along the Rhine.