Twitter:

See photos from 100 years ago alongside photos of the same spot from today. You can contribute, too! https://commons.wikimedia.org/wiki/Commons:Photo_challenge/2015_-_September-October_-_100_years_later 

Facebook:

See photos from 100 years ago alongside photos of the same spot from today on this cool Wikimedia Commons challenge. You can contribute, too! https://commons.wikimedia.org/wiki/Commons:Photo_challenge/2015_-_September-October_-_100_years_later 


Jeff Elder
Digital communications manager
Wikimedia Foundation
704-650-4130 
@jeffelder
@wikipedia
The Wikimedia blog