St. John's Church in Petersdorf dates from the 13th century. Its 64-metre-high steeple was used as a daymark by ships on the Fehmarn Belt and Sound, as it is visible for up to 20 miles at sea. The church and adjacent cemetery are surrounded by 64 lime trees. The altar triptych dating from the 14th century is considered a masterpiece of Gothic carving skill. The oldest artefact is the font of Gotland limestone. The church also contains a particularly valuable 15th century altar shrine.
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.