Dudeldorf Castle is the most important monument in the parish of Dudeldorf. It was built in 1345 and restored 1451–53.
The original Dudeldorf Castle was built in the 12th century, although the exact date is not known. A lord of Dudeldorf is recorded in 1052. In the 14th century this aristocratic family became extinct.
The castle occupies the northern part of the village walls which also form the curtain walls of the castle. The overall site consists of the medieval tower house, which was converted into a school in the 19th century, the double-winged manor house, added in the 18th century, the courtyard with its archway and the garden and pavilion. The bergfried, which rises above a vaulted basement, bears the date 1734 at the level of the uppermost of its three floors.
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.