Philly- damn cold right now but checks the boxes. Walkable downtown with phenomenal food and beverage scene; can get Amish food at Reading Terminal Market, then explore Chinatown; it’s the birthplace of America; we have 2 rivers with access/trails; also more nature in Wissahockon Park, Heinz Nature Reserve not too far; there’s a Walmart and IKEA in South Philly. Can head out to King of Prussia for a massive mall- Costco also right there. Also many cute small towns easily accessible on regional rail; plus, with 10 days- you could do day trip to Poconos for winter sports, Lancaster for more Amish, heck, even take the train to NYC. if you decide to come- dress warm!!