If you are looking for a short trip to Prague surroundings, a visit to Dobris and its rococo chateau is a good tip. The chateau is easily accessible, has a wide mirror hall (220 square meters) and a well-kept French Park. Visitors can reach Dobris from Prague by car in 40 minutes. Great views on Vltava and Berounka river can be added to the itinerary for a full day trip to the hilly area of Brdy.
More information on http://www.zamekdobris.cz/en