Climb Pikk jalg and you'll find yourself on Castle Square (Lossi plats), smack-dab between the seat of the Estonian government at Toompea Castle and the 19th-century symbol of the Tsar's power in Estonia, Alexander Nevsky Cathedral. You are standing at the birthplace of Tallinn, where the Knights of the Sword built a fortress in 1229.
![Toompea Hill. Photo by Kaupo Kalda. Visit Tallinn.](https://s.inyourpocket.com/img/text/estonia/tallinn/dji01586_panorama1-toompea-linnamuur-kaupo-kalda.jpg)