Krakus Mound is thought to be the resting place of Krakow's mythical founder, the legendary King Krakus. It has the base diameter of 60 metres and the height of 16 metres. Together with nearby Wanda Mound, it is one of Krakow's two prehistoric mounds, and the oldest man-made structure in Krakow. Nearby are also two other non-prehistoric, man-made mounds, Kościuszko Mound, constructed in 1823, and Piłsudski's Mound, completed in 1937.
The age and the original purpose of the mound remain a mystery, although religious and memorial purposes have been ascribed to the mounds. Excavations conducted in mid-1930s revealed that the mound consists of a solid wooden core covered with soil and turf. Some artifacts dating from between the 8th and 10th centuries were found inside, but no human remains or bones were discovered. According to another hypothesis the mound is of Celtic origin and dates from the 2nd-1st century BCE. Mythical origins are also connected to the mound. Krakus is said to have been constructed to honour the death of King Krakus when mourning townspeople filled their sleeves with sand and dirt and brought it to the site of the Krakus Mound to create a mountain that would rule over the rest of the landscape, as King Krakus had. Originally, four smaller mounds ringed the Krakus Mound, but they were demolished in the 19th century to create Krakow's city wall.
Similar to other ancient structures, such as Stonehenge, the Krakus Mound may have been constructed with astronomy in mind. If one stands on the Krakus Mound and looks towards Wanda Mound at sunrise on the morning of Beltane, the second-largest Celtic feast day, one will see the sun rise directly over Wanda Mound.
References:The ancient Argos Theater was built in 320 BC. and is located in Argos, Greece against Larissa Hill. Nearby from this site is Agora, Roman Odeon, and the Baths of Argos. The theater is one of the largest architectural developments in Greece and was renovated in ca 120 AD.
The Hellenistic theater at Argos is cut into the hillside of the Larisa, with 90 steps up a steep incline, forming a narrow rectilinear cavea. Among the largest theaters in Greece, it held about 20,000 spectators and is divided by two landings into three horizontal sections. Staircases further divide the cavea into four cunei, corresponding to the tribes of Argos A high wall was erected to prevent unauthorized access into the theatron and may have helped the acoustics, but it is said the sound quality is still very good today.
Around 120 CE, both theaters were renovated in the Roman style.