Guided Tour in the Old Town of Tallinn

During this tour you are going to learn about the history of the city as well as its iconic sights located in the Old Town. Tallinn residents and guests do not often notice how many peculiar details one can find in its architecture and history. And the questions will follow:

Why does Toompea Castle include several buildings, in fact?
Why are there carved stones in front of several medieval buildings?
Why would there be a defensive wall in the middle of the city?
Why is Lai Street so wide compared to the rest?
Why is the Town Hall ornated with dragon heads?