The globe-trotter said she pulled off the cool project by using special paint to turn her leg into a chalkboard. She took photos in Paris, Prague, Barcelona and Athens, to name a few.
The active redditor is also known for her sense of humor. In 2016 she posted a photo from her graduation from Lehigh University joking that her college education had cost her a leg, but not an arm.
Gallagher has said that her leg was amputated when she was four because of congenital bone disease.