Boston is a great city to visit during Christmas, as there are many festive activities and events to enjoy. You can explore the city's many shopping districts, which are filled with unique gifts and decorations. There are also many holiday-themed events, like the Boston Christmas Festival and the Holiday Pops concert. You can also take a walk through the city's Christmas lights displays, which are always a sight to see. Additionally, there are many holiday-themed restaurants and bars to visit, so you can enjoy a festive meal or drink while celebrating the season.