2025-12-25 00:00 Mark Twain's Neighborhood Nook Farm In the late 1800s Samuel Langhorne Clemens' farm at the edge of Hartford, Conn., is a hotbed of activists articulating issues of the day. 01:00 Twas the Christmas That Changed the World A true holiday season tale of two fathers whose bedtime stories shaped the world. 01:30 10 Towns That Changed America Influential towns acro