The Kostelec nad Černými lesy Castle is the main landmark of the town. The castle was first documented in 1348. Until 1549, when it was destroyed by fire, the castle served as a hunting lodge of Emperor Ferdinand I. After 1550, it was rebuilt in the Renaissance style. After 1750, baroque modifications were made. Today the castle is owned by Czech University of Life Sciences Prague and is used for social and business purposes. The neighbouring Church of Saint Adalbert is connected with the castle by a covered corridor.
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.