The Széchenyi Chain Bridge, a historic landmark in Budapest, Hungary, is undergoing maintenance and restoration to accommodate increased pedestrian and cycle tourism. Originally constructed in 1849, the bridge is being rebuilt with lighter materials while preserving its iconic design. To assist in the restoration efforts, a collaborative project between Hungarian companies Bimfra and Ventus-Tech utilized photogrammetry and LiDAR technology to create a detailed 3D model of the bridge and its surroundings. This model serves as a crucial reference for accurate measurements and planning during the restoration process.