Round metal ring in the pavement of U.S. Highway 10 marking the landing place of Korabl-Sputnik 1 in Manitowoc, Wisconsin, United States
<a href="//commons.wikimedia.org/wiki/User:Jonathunder" title="User:Jonathunder">Jonathunder</a>
GFDL 1.2
<span class="int-own-work" lang="en">Own work</span>