Location from remembrance-of-earths-past by
The New York campus on the East River where the Planetary Defense Council was constituted, the Wallfacer Act was passed, and humanity's collective response to the Trisolaran crisis was — for better and worse — coordinated.
The UN in the trilogy is the only forum the species has for collective decisions and is, for that reason, both indispensable and absurd. Ambassadors argue over wording while sophons read every keystroke. The Wallfacer ceremony — four men presented before the General Assembly, each told they will never need to explain themselves — happens here. So does Saul Durand's protest. So does the secret debate over whether to authorize the gravitational-wave broadcast.
The familiar slab of the Secretariat tower beside the low arc of the General Assembly building, glass and white marble on the East River. A perimeter of national flags. The interior corridors are quieter than visitors expect, lined with murals nobody sees twice. A windowless basement chamber, added during the Crisis Era, hosts the Planetary Defense Council.