The garden, commissioned by Count Bengt Oxenstierna, was considered one of Sweden's most lavish, at the time it was planted at the end of the 1600s by Nicodemus Tessin the Younger.
To the left of the palace towards the Sigtuna bay lies the English garden commissioned by Duke Karl (XIII) around the turn of the 19th century.
Here you can stroll down winding paths and find superb views of both land and water.
The Romanesque churches from 1160- 1170 in neighbouring villages of Norrsunda and Skånela are also worthwhile visiting. They both share an unusual feature with towers to the east.