The Late Gothic Eagle Tower was built in the 15th century as a part of the Rüdesheim city fortification. It is 20,5 m high with a 5 m interior diameter, 1 m thick walls, four floors and an underground dungeon accessible only through a hole in the vaulted ceiling. It was located close to the river. In winter, when the frozen up Rhine was safe for crossing on foot, a basket with combustible material was put on the tower as a fire signal. In the 19th century, when the Adlerturm housed an inn called “Zum Adler” (In the Eagle), Johann Wolfgang von Goethe, Germany’s greatest poet and literary man, frequently stayed here during his Rüdesheim visits in order to enjoy the magnificent view of the Rhine. Today the Adlerturm is the property of a bank.
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.