Eiffel tower architecture futuristic landmark. https://www.rawpixel.com/image/14524798/eiffel-tower-architecture-futuristic-landmarkView licenseProlapse of the IrisCollection:Images from the History of Medicine (IHM) Author(s):Bartisch, George, 1535-approximately… https://www.rawpixel.com/image/9653369/image-face-person-artFree Image from public domain licenseTransmission of disease through the 3 Yin channels, Chinese https://www.rawpixel.com/image/14019990/transmission-disease-through-the-yin-channels-chineseFree Image from public domain licenseTransmission of disease through the 3 Yang channels, Chinese https://www.rawpixel.com/image/14002401/transmission-disease-through-the-yang-channels-chineseFree Image from public domain license