While scoping out Buzzfeed.com I came across this collection of 75 pictures from the past that are combined with the same place in the present. This is an awesome collection. It shows how much stuff has changed, and even some stuff that has stayed the same. Click HERE to check out the collection.

This got me thinking, I want to put a challenge out for you guys to do this around Northern Colorado. I think it would be great to see pictures like this from around here.