Visitors admire the beauty of vibrant, multi-colored flowers during a tulips festival at Chamran Park in Karaj on April 15, 2017.

Over 320,000 pieces of tulip bulbs in 38 different colors have been put on show at the festival which is being held for the fifth consecutive year. The event runs through April 21. (PHOTO: Abbas Shariati/Tasnim)

AFM/MG