The Otepää Maarja Lutheran Church was built in 1890 and represents the Gothic revival style. On 4th June 1884 the blue-black-white flag of the Estonian Students’ Society was consecrated in the church, which later on became the flag of the nation and in 1992 the official national flag of Estonia. The bas-reliefs of the flag, the author of which is sculptor Voldemar Mellik, were opened on the church wall in 1934 (on the 50th anniversary of the national flag). The bas-reliefs were destroyed in 1950 and restored by sculptor Mati Variku and opened again on 15th July 1989.
Reference: Maaturism.ee
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.