Rheingrafenstein Castle lies on a 136-metre-high porphyry rock formation on the river Nahe, opposite Bad Münster am Stein-Ebernburg. The rock castle was probably built in the 11th or 12th century by the Counts of Nahegau of the Emichones family. It was definitely the ancestral castle of the Lords of Stein, the later Wild- and Rhinegraves, and it remained in their possession until the French Revolution. The Lords of Stein were first mentioned in the 12th century. Their relationship to the Counts of Nahegau is unclear. Rheingrafenstein Castle itself is first unambiguously mentioned in the 13th century. The Lords of Stein acquired the Rheingau in the second half of the 12th century through marriage. In 1196, Lord Wolfram of Stein began styling himself Rhinegrave. This title was later attached to his castle.
During the Thirty Years' War, the castle was captured by French and Spanish troops. In 1688, it was destroyed by general Mélac. In 1721, a salt works was built on top of the castle's ruins. The castle's last owner, the Prince of Grumbach, moved his residence to nearby Gaugrehweiler.
Parts of the enceinte, a vaulted cellar, a few steps of the former tower house, and the foundations of the former tower staircase are still standing. Another staircase leads through the rocks to a viewing platform.
On the southern slope of the rock, the ruins of the bailey Affenstein can be seen.
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.