However, the lost buildings were only replaced in the 1960s when the East German Socialist Unity Party and the Council of Ministers decided to rebuild the area to fit the government's visions of a modern socialist city. The new broad Karl-Liebknecht-Straße started on Spree Island at the Marx-Engels-Platz, between Berlin Cathedral and the Palace of the Republic inaugurated in 1976. On the other side of the Liebknecht Bridge, large "Plattenbau" apartment blocks were built along the street, while the right side became a large open green, stretching from the Marx-Engels-Forum to the foot of the Fernsehturm (TV tower). Instead of turning north at St. Mary's Church, the new Karl-Liebknecht-Straße, finished in 1969, now goes straight ahead, bypassing Alexanderplatz to meet the arterial road Prenzlauer Allee at the site of the former city gate ("Prenzlauer Tor"). The former northeastern section of the street, beyond the church, is today known as Rosa-Luxemburg-Straße - named after Rosa Luxemburg, another co-founder of the Communist Party who was likewise killed in 1919.