Illustration of Himeji castle in Japan https://www.rawpixel.com/image/380682/free-illustration-vector-castle-ancient-architectView licenseIllustration of Neuschwanstein castle in Germany https://www.rawpixel.com/image/380745/free-illustration-vector-bavaria-landmarks-europe-ancientView licenseVector old European architecture watercolor collection https://www.rawpixel.com/image/2678429/free-illustration-vector-mosque-watercolor-ancientView license