Solar panel out the <a href="https://en.wikipedia.org/wiki/National_Museum_of_Singapore" class="extiw" title="en:National Museum of Singapore">National Museum of Singapore</a> for recharging mobile phones (Need to bring your own <a href="https://en.wikipedia.org/wiki/USB" class="extiw" title="en:USB">USB</a> cable though...)
<a href="//commons.wikimedia.org/w/index.php?title=User:ProjectManhattan&amp;action=edit&amp;redlink=1" class="new" title="User:ProjectManhattan (page does not exist)">ProjectManhattan</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>