Stay comfortable in your slippers (or kick off your shoes and relax) while you venture into uncommon spaces, led by a select group of Boston By Foot guides. These experienced volunteers researched and conducted special made-to-order tours that they now have adapted for this series, comprising four “Boston UnCommon” topics, translated from walking to virtual, and presented by the original authors and collaborators. They will guide you through some of the less-heralded parts of Boston and its history.