The answer depends on who you ask. But according to Instagram analytics, the top city for 2019 was London, knocking Paris into second and New York into third. We chose 2019 because obviously travel has been on hold for the better part of 2020. Nearly 120 million London hashtags were posted to Instagram, which were 88.8 million a year before. According to London and Partners, the city may need to accommodate more than 40 million visitors yearly by 2025!