Vlotho was a medieval hill castle above the town with same name. The extended property is located on the Amtshausberg with a steep grade to east and south. The bent river has a natural harbour, on the medieval main road from Frankfurt to Bremen.
The castle was built around 1250. It was razed around 1368. The foundation is the only part from the medieval period. Drawings dating back to 1581 are extant, but they are no reliable representation. The castle ruins were demolished in 1709, with only the dungeon surviving until 1936. The castle ruin is c. 110 metres m long and c. 60 metres m wide. The surrounding wall is mostly preserved.
Part of the reconstructed castle is covered by a modern protective roof. The property features a restaurant with garden area. The terrace offers a view over the Weser valley.
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.