There are many mounds in Poland. In current times, they were erected in honor of people of merit or to commemorate historical events. However, building mounds is a tradition dating back to pre-Christian times in Poland. Kraków is unique, there are the oldest and most unique mounds.
The Pilsudski Mound stands at the highest point in Krakow. Its construction began even before the Marshal's death in 1935. The whole polish nation participated in its construction. In the post-war period, the mound was inconvenient for the communist authorities of the People's Republic of Poland. It had no name on the official maps. It was just a "viewpoint". Trees were planted around the mound to remove it from the city landscape.
The Wanda Mound was probably built around the 7th-8th century. However, archaeological research has not confirmed the exact age of the mound or its purpose. The second prehistoric mound in Krakow is the Krakus Mound. The location of these two mounds seems to be no accident. Standing on the Krakus Mound on May 2 or August 10, we will see the sun rising over the Wanda Mound. These are the approximate dates of the Celtic festivals the beginnings summer and autumn. Standing on the Wanda Mound on February 6 or November 4, we can see the sun setting exactly over the Krakus Mound. These are dates associated with the beginning of spring and winter. Like other ancient structures such as Stonehenge, Wanda and Krakus Mounds were probably built to mark the changes of the seasons.