Make a difference by donating blood to Massachusetts General Hospital, and receive a free cupcake and t-shirt for your contribution.

Join Vinfen, a company devoted to providing services for those who have health or medical conditions, for their annual film festival “Without Judgment.”

Celebrate Dr. Seuss’ birthday in Harvard Square with some free green eggs and ham, storytime, activities and more. All ages are welcome.

Make a plunge team for the Nantasket Polar Plunge and start fundraising to support the Special Olympics.

Tune in to a variety of folk music from around the world, which is performed by Berklee students and special guests and features the Berklee West African Drum and Dance Ensemble.

Buy tickets to this tour to find out about what secret innuendos are featured at the Museum of Fine Arts.

Get ready for spring with the Boston Flower & Garden Show, featuring an array of colorful gardens and plantscapes.

Laugh your heart out at the Boston Comedy Festival in The Haymarket Lounge for dinner and a comedy show.

Watch the exhibits at the Franklin Park Zoo turn green for St. Patrick’s Day, while enjoying arts and crafts and learning some animal knowledge.