The Torre Monreal is a tower, traditionally considered of Arab origin, located on a hill to the southwest of the city of Tudela.
It probably dates from when Amrùs walled Tudela in the year 802. However, there is no documents before the thirteenth century. In 1343 the ramparts and battlements of the tower were repaired, as they were demolished in the severe storms and floods that occurred in previous years. After the Castilian conquest of the Kingdom of Navarre at the beginning of the 16th century and the dismantling of the walls and defenses of Tudela (especially from 1521), the Torre Monreal lost its defensive character, being enabled for other purposes.
The Torre Monreal has been subsequently rebuilt on various occasions. It served as a fortress for the French after the invasion of Spain and Navarre, and was demolished by Espoz and Mina in 1813 , at the end of the War of Independence. It was rebuilt in 1883 , for the defense of the city during the Carlist Wars. The current octagonal brick construction is, therefore, from the Carlist period.
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.