Haldenstein Castle was probably built in the 10th or 11th century as the family castle of the Ministerialis Haldenstein family, who were in service of the Lord of Vaz. By the 12th century the family had split into two lines, the Haldenstein family and the Lichtenstein family (who inhabited the nearby Lichtenstein Castle. Each family ruled over part of the nearby village and farms. By the end of the 13th century the Lichtenstein family died out and their lands and castle were inherited by the Haldensteins. In 1299 Johann von Vaz and the Bishop of Churquarreled over an unauthorized expansion of Haldenstein Castle. By the 14th century the Lord of Haldenstein was in the service of the Bishop. In 1362 Ulrich von Haldenstein was a soldier in Habsburg service, though in 1379 he was again in the service of the Bishop of Chur.
The Haldenstein family died out around the end of the 14th century. At this point the castle passed through a number of owners. In 1542 the widow of Jacques von Marmels married a French minister named Johann Jacob von Castion and he became the owner of Haldenstein. He quickly moved from the cramped and inconvenient castle down into Haldenstein and built the new Haldenstein Castle near the town. The old castle became known as Alt(Old)-Haldenstein. The old castle was sold to Gregor von Hohenbalken, the Lord of Aspermont, in 1567. In 1608 it was sold to the Scheuenstein family and later the Salis-Maienfelds occupied the castle. It was damaged in an earthquake in 1769 and again in 1787 and it was abandoned in the following years.
The castle was built on a small rocky outcropping above the valley below the Calanda massif. Due to the small size of the outcropping, the castle site is compact without outbuildings or curtain walls. Over the centuries the tower's height increased in several stages as the owners expanded in the only direction they could, upward. Several building phases can still be seen in the remaining tower walls.
The castle site can only be reached by following a narrow and steep trail along the mountain to the castle outcropping.
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.