This work by https://www.swantower.com is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Like much of Poland, Malbork got the snot bombed out of it during World War II. Restorations are ongoing, but in the meanwhile, bits and pieces get stuck . . . wherever. These decorative fragments are hanging off a wall near where you purchase your ticket and audio tour, and the late afternoon sun lit them very pleasingly.