Turkish Cultural Center Boston attended to 31st Harvard Square May Fair. As a non-profit organization we introduced and sold Turkish products like delight,coffee and musical instruments. What is May Fair? Springtime in Cambridge, MA, brings blossoming flowers, fresh produce, and the annual MayFair celebrations in Harvard Square.Colors abound, the streets of Harvard Square fill with music, arts and crafts, local vendors, and any street performers who decide to strut their talents for onlookers. Cambridge boasts a rich history of supporting and developing the arts. In honor of this tradition, MayFair has several stages set up around the Square to host ongoing acts and live concerts throughout the day.