Falkenstein Castle is located at 1,268 metres above sea level and it is Germany's highest located castle. The stone castle was built approximately 1270–1280 by Count Meinhard II von Tirol on the borders of his land (Tyrol). Because of the unusual situation of the castle it has been interpreted in historical context as a symbol of opposition to the Duchy of Bavaria. The name Castle Falkenstein only came into use in the 15th century. The castle was largely destroyed in the 17th century.
King Ludwig II of Bavaria purchased the ruin in 1883 and commissioned several architects, the first being Christian Jank (the designer of Neuschwanstein), to replace the existing structure with a romantic castle. Jank first created a restrained design, but later envisioned the castle in a dramatic, High Gothic style. Georg Dollmann was employed to produce plans and elevations in the same year based on Jank's design. However, his modest and economical designs displeased Ludwig.
Ludwig died in 1886 before work on the castle proper could begin, and the many plans for Falkenstein were permanently abandoned. The ruin of Castrum Pfronten on the building site was never demolished.
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.