Old Uppsala, Sweden (Gamla Uppsala) 3 royal (Vikings) burial sites from the 6th century.
Old Uppsala Cathedral, (Gamla Uppsala domkyrka) Built in the 12th century, on the site where the vikings had their temple.
The Viking Trail (Vikingaslingan) Trail on lake Mälaren for skating from Uppsala to Stockholm.
I wish we had planned for a day on the ice! We just stopped and looked envious at others!
The Fyris river (Fyrisån) south of Uppsala.