![graffiti alphabet letters grafitti archaeology](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh9e1MJgqk5-PktJHbR2hXO-3tHWie6g023HgNm4Xa-PCsbS4aC9IRPJ389cP8-2EdKQn2VscviCgqidpvuT9k3YoAnFxBSl9WzcfEdVi72BtyN9YqsnPG6_yJpaat1olyN7kW3jnk5qrtv/s400/grafitti_archaeology.jpg)
Graffiti Archaeology is a project dedicated to the study of graffiti-covered walls as they change over time. The core of the project is a timelapse collage, made of photos of graffiti taken at the same location by many different photographers over a period of several years. Most photos are from San Francisco, during a time span from late 1990 to present.