 3D city models are important tools for urban and disaster management planning, but creating accurate representations across a wide area is difficult. This research aims to develop an automated 3D city modeling application that utilizes a combination of aerial photographs, terrestrial light detection and ranging, and total station techniques for particularly dense urban areas. The application software programmed in C++ enables users to generate 3D images of buildings using aerial photos and is quantitatively assessed for completeness and suitability for commercial or public use. This article was authored by Bayang Yunyang and Jangil Lee.