CS: Alphabet PC's #3 letter C

For this swap, We are on the letter C for postcard to one partner. C as in Colorado, Chicago, Canyon, Cemetery,Covered bridge,Cars,Coffee mug with coffee in it, Cats, etc. It will be sent naked.
The Postcard will be store bought only. No handmade, Ads, or Freebies please. Zazzle, Postcard bliss, or Cafepress allowed.
There is a bit of twist to this. The PC you choose, You will be looking for lesser known facts about it & write down 3 lesser known facts on it.

When you receive your PC, please rate right away & rate a 5. Thank you very much.