Milan, Italy, held the most recent World Expo in 2015, while Nur-Sultan, Kazakhstan, held the most recent Specialised Expo in 2017. Dubai, United Arab Emirates, was selected to host the next World Expo in 2020, but due to the COVID-19 pandemic it was postponed to 2021. Buenos Aires, Argentina, who had been selected to host the next Specialised Expo in 2023, announced its withdrawal with no reschedule date.