Reality Capturing describes modern 3D surveying techniques such as photogrammetry and laserscanning. Data is collected form both terrestrial and airborne plattforms and merged into 1:1 scale digital twins from the observation sites. With the know-how of geodetic experts and external reference information these 3D models can reach an accuracy of a few millimetres. Drone images are also used for texturing the resulting mesh, so that the 3D models do not only contain geometry but also realistic color information.