Wisconsin & Massachusetss Ave
Washington DC, DC , 20016
Phone: (202) 537-6200
There is a machine in the Cathedral gift shop and cost $1.01. Machine still in Gift Shop which is now downstairs below the cathedral.
All say 'Washington National Cathedral', on the back. Designs are :
1) The Cathedral
3) Round Maze
4) Large fancy cross with small ones in each corner
6/17/16: There is a machine in the Cathedral gift shop and cost $1.01. I only got the Cathedral design and it rolled short on copper. The lady working also told me that you also have to hit the side of the machine to get the penny to drop.