I really great maxi-card from Estonia that has been neglected since 2011...don't know why...
Here you can see the two Suurupi lighthouses; the Suurpi rear lighthouse, which was completed in 1760 (the one on the left) and the Suurupi front lighthouse (the one on the right) which was built in 1859 and is the oldest and currently the only wooden lighthouse still functioning in Estonia. It acquired its final shape after several alterations in 1888.
Suurpi, btw, is a small village in Estonia :)
there are three stamps on the back...the two below the airmail sticker were issued in 2011 in a set of five from the Post Horn series. The other one is a definitive from 2007.