Ten must-see pavilions at Dubai Expo 2020

The Dubai Expo has officially opened with pavilions designed by architects including Foster + Partners, WOHA and Santiago Calatrava. Here we round up 10 of the most interesting.
UAE Pavilion by Santiago Calatrava
Designed by Spanish architect Santiago Calatrava, the host nation's pavilion was informed by the shape of a falcon's wing.
The building is topped with 28 carbon fibre "wings" that can be closed to shelter the roof solar panels.
Singapore Pavilion by WOHA
Singapore studio&