Five years ago, a photographer named Eric Fischer embarked on a project called "Locals and Tourists" that had him mapping the photo habits of Chicago residents and tourists.
The results are above. While not necessarily mind-blowing, but they do look nice.
The red dots in the map above represent photos shot by tourists, blue dots are those taken by Chicago natives. Yellow dots represent photos taken by people who's status as tourists couldn't be determined.
As expected, the Loop is consumed by a fair amount of tourists. Navy Pier is entirely swarmed. Even so, the most noticeable color on this map is blue. Many cities in the Locals and Tourists project didn't come anywhere near as close to Chicago in terms of spread. Houston, the nation's next-largest city, is a comparative dead zone (see below).
Perhaps the best takeaway is that people really love spending time in Chicago.
Here's what Chicago looks like as a picture-taking whole—tourist or not.
Photograph: Eric Fischer / Flickr
Here are some of the photo maps from other U.S. cities:
New York City
Photograph: Eric Fischer / Flickr
San Francisco
Photograph: Eric Fischer / Flickr
Los Angeles
Photograph: Eric Fischer / Flickr
Houston
Photograph: Eric Fischer / Flickr
Detroit
Photograph: Eric Fischer / Flickr
Las Vegas
Photograph: Eric Fischer / Flickr
London
Photograph: Eric Fischer / Flickr
Venice
Photograph: Eric Fischer / Flickr
Rome
Photograph: Eric Fischer / Flickr
Mexico City
Photograph: Eric Fischer / Flickr
To explore photo trends in cities across the world, visit MapBox's worldwide interactive map.