Trollhättan

The locks, the Göta Älv river, and the surrounding nature.

museums
Innovatum
(http://www.innovatum.se), Åkerssjövägen 10. A hands-on science and industry museum.

The Saab Museum Saab bilmuseum (http://www.saab.com/main/...), Åkerssjövägen 10. Museum with many historic cars on display.