Here are some free elevation maps. You can use these to create 3D artwork, for personal or commercial uses - and free of royalty. Enjoy.

Before you know it, you'll create pretty landscapes like these:     https://youtu.be/Sy6LTHA8NtE

New:

Just my Covid vaccine certificate's QR code turned into an elevation map

If you like these, please mention it somewhere. Here are some elevation maps. Bookmark this page, come back occasionally to find more.