Anchor Canvas, a.k.a., Suburban Security Agency, one of the few structures along Jericho Turnpike east of <a href="https://en.wikipedia.org/wiki/Caleb_Smith_State_Park_Preserve" class="extiw" title="w:Caleb Smith State Park Preserve">Caleb Smith State Park Preserve</a> with the <a href="https://en.wikipedia.org/wiki/Nissequogue_River" class="extiw" title="w:Nissequogue River">Nissequogue River</a> as it's backyard before Jericho Turnpike itself finally comes to an end at Main Street (NY 25A), and NY 25 joins NY 25A in an overlap until the northern terminus of NY 111 at the Village of the Branch. When I have more details about this building, the image will be updated.
<a href="//commons.wikimedia.org/wiki/User:DanTD" title="User:DanTD">DanTD</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>