The exhibition features a dome made from do (poonah paper), a traditional Vietnamese material, combined with recycled plastic and steel to create a space that is both soft and strong, symbolising the harmony between nature, humanity and technology.

This milestone was celebrated on April 20, marking the first time a UNESCO world heritage site in Vietnam has met Green Building standards.

The Vietnam Green Building Council (VGBC) on May 22 awarded the Green One United Nations House (GOUNH) in Hanoi a Platinum Lotus certification, the highest level in the market-based green building rating system.