(DC) (Friends of the National Arboretum) Get in the holiday spirit at the National Arboretum! FONA’s Winter Festival returns this year. Buy your Christmas tree and shop from 30+ local artisans in the gift vendor village, take a holiday train ride around the Capitol Columns, and enjoy free family-friendly activities! There will also be plenty of hot chocolate and caroling to ring in the holiday season. This event is free to attend, but please register to let us know you’re coming and to receive important event-related updates.