The Marquam Bridge over the Willamette River, in Portland, Oregon. Viewed from the southwest, atop Marquam Hill.  The ramps going to the bottom left are Interstate 405, and bottom right are Interstate 5.
<a href="//commons.wikimedia.org/wiki/User:Cacophony" title="User:Cacophony">Cacophony</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>