Gedung Joang 45, Independence struggle museum in Menteng district, Jakarta, Indonesia.

Gedung Joang 45 occupies the former Hotel Schomper, built around the 1920s on Jalan Menteng Raya 31. The main building stands between rows of guest rooms, of which a few remain on the north side, now used as a library and children's room. Displays cover the independence struggle of 1945-1950 with photographs, paintings, dioramas and busts of movement figures.

In the 1940s, the building served as a meeting point for young nationalists organizing the Rengasdengklok operation before Indonesia's independence declaration. These gatherings were crucial for coordinating the nation's path to freedom.

The building's name comes from the Indonesian word "joang", meaning struggle, and the year 1945. Visitors can listen to a recording of Sukarno reading the proclamation of independence on 17 August 1945, and to his speech at the Ikada Square rally of 19 September 1945. Guided tours are mostly given by former combatants.

Visitors can join guided tours led by former independence fighters who share personal experiences from the revolutionary period. These visits offer direct insight into the daily struggles and decisions of that era.

The building temporarily housed Japanese propaganda offices and later the Royal Netherlands Navy during the independence struggle. These different occupations reveal the shifting power dynamics that shaped the movement.