Funkhaus Wallrafplatz, Broadcasting house in Altstadt-Nord, Cologne, Germany.

Funkhaus Wallrafplatz at Wallrafplatz 5 is the WDR's oldest building, a five-storey block with a travertine facade and glazed arcades at street level. Its curved interior was a deliberate break from Nazi-era architecture. The eight broadcast halls have 50-centimetre-thick soundproof walls, and pearwood panelling from Switzerland kept out the bell of the nearby cathedral.

The building was constructed between 1948 and 1952, rising on the site of the former Hotel Monopol as a groundbreaking broadcast center for Europe. This founding period made it a model example of postwar modern broadcast architecture.

The building is named after Wallrafplatz, the square where it stands. Its eight broadcasting halls and many radio studios have 50-centimetre-thick walls so that the bells of the neighbouring Cologne Cathedral cannot be heard during recordings. The Great Broadcasting Hall, seating 650 listeners and 150 musicians, hosts more than 200 concerts and events a year.

The main entrance is on Wallrafplatz 5, leading through a vestibule to the main staircase and the Small Broadcasting Hall, which seats 160. The eight broadcasting halls and radio studios have 50-centimetre-thick walls so the bells of the nearby cathedral cannot be heard. The Great Broadcasting Hall, seating 650, is also used as a concert hall.

The eight broadcast halls and numerous radio studios have 50-centimetre-thick walls so that the ringing of the cathedral's Petersglocke bell cannot be heard during recordings. The sound-scattering wall panelling is made of Swiss pear wood.