The University of Kansas is a good place to start the trip that discusses evolution and its evidence. The campus natural history museum houses many fossils and other exhibits from a wide range of time periods. The Geology Department has facilities for determining the age of fossils in rocks which is an important piece of evidence for explaining how there is enough time for the process of evolution to have occured.
Not far from the university, on the Southwestern edge of Lawrence, KS, is Clinton Lake. The lake is a reservoir with a dam and a spillway to relieve pressure on the dam when the water level rises too high. To create the spillway, which is essentially a man-made valley, the hill on the south side of the dam was cut into, exposing many layers of limestone rock and the fossils within them. The fossils tend to be unnoticeable as such but look closely and you can see fossils of crinoids, mollusks and other organisms from a time when Kansas was a shallow sea.