Danish king's garden in Tallinn is a small stone platform, rising above the lower town. On one side the garden is enclosed by a city wall and offers a wonderful view of the red roofs of the old town. From Toompea in the Danish king's garden is a passage from Alexander Nevsky Cathedral, and from the lower town here a staircase leads from the street rüütli street and lühike jalg.

The name of the garden was due to the legend according to which this was the place where the Danes got their flag. In 1219 the army of the Danish King Valdemar II with the blessing of the Pope and under the pretext of assistance to German colonists landed in the Baltic States, and capturing the settlement, settled near Toompea hill. Estonian troops suddenly attacked the Danish army. The attack was so sudden that some of the Danes had to retreat. Then, according to legend, the bishops went up the hill and began to ask for help from God. Suddenly the heavens opened, and from the height dropped a huge red cloth with smooth white cross – Dannebrog - this image and today is the national flag of Denmark. This was seen as a sign from God, the Danes cheered and managed to defeat the pagans.

Day of victory in this battle, called the Battle of Valdemar, has become celebrated as the birthday of the national flag of Denmark – Dannebrog. And today, every summer this festival, enjoying particular success in tourists from Denmark, is celebrated in the garden of the Danish king. According to the legend, the iron knight, mounted in the garden, points to the place of occurrence of the flag, descended from heaven.