You don't have to be sitting behind a computer to learn a thing or two. Organize an outing to Estonian Centre of Architecture and find out more about the world around you.
If you're spending a while in Kalamaja, Estonian Centre of Architecture is a good place to kick off your sightseeing. This museum is one of numerous attractions that'll keep you on the go here. Alexander Nevsky Cathedral, St Mary's Cathedral, and Town Hall Square are also waiting for you nearby.