In Iceland, a hand-drawn map can get
your mail delivered to the right address.
Tourists who had visited a farm and
mini zoo wanted to send a thank you
postcard but forgot the address, so they
drew a map of the area instead. It not
only worked, but is not an uncommon
occurrence in place where only 300,000
people live in an area the size of Ohio. Source
Someone in Russia also tried the map-drawing idea. It worked, too!