The Oregon Museum of Science / Industry is fun whether your a kid or not. The actual building is quite modern and inside you will find some pretty amazing contraptions, machines, and gadgets.What I loved the most is the Crime Science Investigation (CSI) exhibit where you are put into the shoes of an actual investigator.
Upon entering, you will find yourself in a “crime scene” and it’s up to you to jot down anything you may think is significant to the crime on a given piece of document. In the end, you have to solve the crime
source: http://www.goodfoodandtravel.com/oregon-museum-of-science-industry-omsi