This Japanese material website provides mainly free building illustration materials. Not only limited to Japanese architecture, but also buildings from Taiwan, China, Europe, and other countries around the world can be found here. There are five file formats available for download, including Ai, EPS, SVG, PNG, JPG, etc. Even the same building image has different color styles available for download. You can download directly without registration. However, building illustrations cannot be used directly in trademarks or T-shirts, etc. due to different regulations around the world to avoid controversy, please refer to the website's instructions for details.