The Vienna Central Cemetery (Wiener Zentralfriedhof) is one of the largest cemeteries in the world, largest by number of interred in Europe and most famous cemetery in Vienna. Unlike many others, the Vienna Central Cemetery is not one that has evolved slowly with the passing of time. The decision to establish a new, big cemetery for Vienna came in 1863 when it became clear that – due to industrialisation – the city's population would eventually increase to such an extent that the existing communal cemeteries would prove insufficient.
The cemetery was opened on All Saints' Day in 1874, far outside Vienna's city borders. Today there are over 330,000 graves.
The church in the centre of the cemetery is named Karl-Borromäus-Kirche (Charles Borromeo Church), but is also known as Karl-Lueger-Gedächtniskirche (Karl Lueger Memorial Church) because of the crypt of the former mayor of Vienna below the high altar. This church in Art Nouveau style was built in 1908–1910 by Max Hegele. The crypt of the Austrian Federal Presidents is located near the Dr. Karl-Lueger Memorial Church. Beneath the sarcophagus, is a burial vault with stairs leading down to a circular room whose walls are lined with niches where the deceased in an urn or coffin can be interred.
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.