This is a collection of half-a-dozen or so former residences the Thai royal family had built as getaways from Bangkok.
The Chaleemongkolasana Residence is the centrepiece and looks kind of like a medievil castle built by Bavarian midgets. King Rama VI had it built in 1908 and didn't get around to having a housewarming party until 1917. The King used to stay here when in Nakorn Pathom for army training with his Wild Tiger Corps. You can wander through his old living quarters upstairs.
Other sights on the park include a shirne to Ganesha and the neo-classical inspired Mareerajaratabulung Residence that is connected to the Chaleemongkolasana Residence by a footbridge over a moat.
There is also a monument to King Rama VI's pet dog, Yalae, who met an untimely death after getting into a fight with a group of dogs from the Royal Gaurds Command. Yalae was shot to death after an officer heard the commotion.
The palace area is normally pretty quiet except on weekends, when package tourists stop to catch a performance in the park after visiting the nearby floating markets at Damnoen Saduak.
How to get there
It's an easy walk from the centre of town but you can catch a motorbike taxi or trycicle rickshaw if you'd like.