Last look at ‘Greatest Show on Earth?’

Listings are subject to change. Please call in advance.

With Sunday’s announcement that the 146-year-old Ringling Bros. & Barnum Bailey Circus will close for good in May, this may be one of the last chances to see one of its iconic shows. Circus Xtreme opens at 1 p.m. today at the Amway Center, 400 W. Church St., Orlando, $18-$85 (all ages), 800-745-3000.

Today

♦ Ringling Bros. & Barnum Bailey Presents Circus Xtreme: 1 p.m., Amway Center, 400 W. Church St., Orlando, $18-$85 (all ages), 800-745-3000.

♦ Unity Heritage Festival: The event honors Martin Luther King Jr. It includes games, food, entertainment and speakers reflecting on Winter Park’s heritage. 10 a.m. to 5 p.m., Shady Park, 721 W. New England Ave., Winter Park, free, 407-623-3363.

♦ Unity Parade and Celebration: Ocoee’s Human Relations Diversity Board’s 11th annual Dr. Martin Luther King Jr. Unity Parade and Celebration will start at Citrus Elementary and end at the West Oaks Mall parking lot, where there’ll be a MLK Celebration. 10 a.m., Citrus Elementary School, 87 N. Clarke Road, Ocoee, free, 407-905-3100.

♦ Parade and Family Fun Day: Oviedo Citizens in Action and the City of Oviedo will celebrate the life of Martin Luther King Jr. with a parade starting at 10 a.m. at Oviedo High School and ending at Round Lake Park, where there will be games, live entertainment, vendors and food. 10 a.m. to 2 p.m., Round Lake Park, 891 E. Broadway, Oviedo, free, 407-971-5590.

♦ Orlando Philharmonic: The Birds: 7 p.m., The Plaza Live, 425 N. Bumby Ave., Orlando, $18-$54, 407-228-1220.

♦ Dinosaur Invasion: Outdoor exhibit features life-size dinosaurs, from 14 inches to 33 feet. Creator Guy Darrough meticulously crafts each dinosaur for authenticity. 9 a.m. to 5 p.m. daily through April 30, Harry P. Leu Gardens, 1920 N. Forest Ave., Orlando, $10 for adults, $3 for children, free for Leu members, 407-246-2620.