This article is from the Puzzles FAQ, by Chris Cole firstname.lastname@example.org and Matthew Daly email@example.com with numerous contributions by others.
A B C D E F G H?
M. The names of the cross-streets travelling west on (say)
Commonwealth Avenue from Boston's Public Garden: Arlington, Berkeley,
Clarendon, Dartmouth, Exeter, Fairfield, Gloucester, Hereford,
Massachusetts Ave. The alphabet does continue in the Fenway; after
Massachuetts Ave., there is Charlesgate, and then Ipswich, Jersey,