Felicia Hanna lives in one of two Habitat for Humanity houses that were built using lumber from the Rockefeller Christmas tree. Laura Ames Photography for Habitat Susquehanna “It’s so special.

Thomas and Susanne Jeromin are tree collectors. They live in Rinteln, Germany, where they decorated their 105 square feet house with over 100 Christmas trees, fairy lights, and around 16,000 ...