The Oregon City Municipal Elevator is a 40-metre tower that connects the lower downtown district with the residential neighbourhood on top of the basalt bluff above. It has been operating since 1915, has been rebuilt and renovated several times, and remains entirely free to use. The views from the top over the Willamette River and the lower town are worth the short ride.
The elevator is a genuine piece of urban engineering history, and the fact that it is still in daily use as practical infrastructure — not preserved as a curiosity — makes it more interesting than many more celebrated landmarks. Take it up, walk along the bluff, and come back down the stairs if you prefer the longer descent.