Chicago's best hidden gem.

Where have you found your favorite hidden gem in our city? Mine is def. this little street in Wrigleyville. For the life of me I can't remeber the street name. It is very close to Clark. It is super narrow, and the houses are all attached to each other, and the architecture is unique. Does anybody no what I am talking about? Its special because it feels as if your in a colonial city. It almost seemed like it was Boston, or something like that. Anyhoo, so whats your favorite hidden gem?>