The stone church of Adelsö was built in the late 1100s. No traces have been found of the first church on the location, but it is assumed it was made of wood. This original structure was however replaced by a stone building, possibly initiated by the king living at the royal estate at Hovgården. If true, the church thus originally served both the local parish and the royal mansion.
The stone structure originally had a nave furnished with a narrow choir which possibly ended in an apse. The sacristy was added in the 14th century, and during the century that followed the tower and then the brick vaults were added. In the 1470s, the choir was widened and united with the nave. The exterior of the tower was created in 1753. and finally, 70 years later, the entrance was relocated from the southern façade to the western end; old windows were enlarged and new windows were added.
There is a baptismal font which dates from the 12th century and a crucifix from the later half of the 14th century. The pulpit dates from 1786 and the gallery from 1832. The votive ship hanging in the church was donated in 1960.
Two Viking Age memorial runestones are built into the walls of the sacristy, one designated in the Rundata catalog as Uppland Runic Inscription 1or U 1 and the other as Uppland Runic Inscription 10 or U 10. Additionally, the so called Hovgården Runestone, U 11, is located just north of the church, near the ruins of the medieval brick palace Alsnö hus.
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.