Blaker Fortress is one of the Norwegian fortresses which were constructed in the period of intense competition among the Baltic powers (Denmark-Norway, Sweden, Russia, Poland and the German states) for northern supremacy. In 1675 Gyldenløve indicated an intent to construct a fortress in the Glomma river where Blaker (a former township in Akershus) lies as part of his general program of Norwegian fortification upgrades. His objective was a stronghold available both to serve as a safe defensive position when necessary and a location to station troops who could take the offensive against invaders when the opportunity availed itself.
Blaker Fortress saw action in 1718, when it was surrounded by the invading Swedish army, but the siege collapsed upon the death of Charles XII of Sweden in front of Fredriksten Fortress. From 1917 to 2003 it was a place for education of craftsmen, art teachers and designers. Today, the old fortress is used for offices, cultural creativity, happenings, weddings, parties, exhibitions, meeting, courses and conferences.Historical walks on the fortress, ghost walks, theater, discourses, salute with canon and rental of costumes from the 1700s and 1800s.
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.