The first High-Level Panel on "The Big Challenges of Our Time". From L-R: Malgorzata Jarosinska-Jedynak, Secretary of State, Ministry of Funds and Regional Policy, Poland; Richard Chimwendo Banda, Minister for Local Government, Unity, and Culture, Malawi; Catalina Velasco Campuzano, Minister for Housing, City and Territory, Colombia; and Ni Hong, Minister of Housing and Urban-Rural Development, China