Say happy birthday to Windemere Nursing and Rehabilitation Center at its 20th anniversary Winter Wonderland open house this Sunday, December 14, at the Martha’s Vineyard Hospital. The free event, from 1 to 6 pm, will include holiday decorations, tours of the Center, music, and seasonal refreshments. Guests will have a chance to meet with the staff and listen to informational presentations at 2:30 and 4:30 pm. For more information, visit windemeremv.org.