About the location (from Wiki):
The Alte Oper (Old Opera) is a major concert hall and former opera house in Frankfurt am Main, Germany. The building was inaugurated in 1880. Many important works have been premiered at the Alte Oper, including Carl Orff’s Carmina Burana in 1937. The building was inaugurated on October 20, 1880. It was designed by the Berlin architect Richard Lucae and financed by the citizens of Frankfurt. Today, the Alte Oper consists of: The Großer Saal (Large Hall) which has seating for an audience of 2,500; The Mozart-Saal with 700 seats; Smaller halls used for conventions. Because the new Frankfurt Opera House had already been built in 1951, the rebuilt Alte Oper was designed for use as a concert hall from the beginning of its reconstruction. Today, it regularly hosts concerts and plays.

Movies shot at this location:
Niluvave Valu kanuladana from Lakshyam
Kannulu Terichi song from Bommarillu
Oodha Oodha Oodha Poo from Minsara Kanna