The General Assembly Building, housing the United Nations General Assembly, holds the General Assembly Hall, which has a seating capacity of 1,800.
At 165 ft (50 m) long by 115 ft (35 m) wide, it is the largest room in the complex.

The Hall has two murals by the French artist Fernand Léger.
At the front of the chamber is the rostrum containing the green marble desk for the President of the General Assembly, Secretary-General and Under-Secretary-General for General Assembly Affairs and Conference Services and matching lectern for speakers.
Behind the rostrum is the UN emblem on a gold background.
Flanking the rostrum is a paneled semi-circular wall that tapers as it nears the ceiling and surrounds the front portion of the chamber.
In front of the paneled walls are seating areas for guests and within the wall are windows which allow interpreters to watch the proceedings as they work.
The ceiling of the hall is 75 ft (23 m) high and surmounted by a shallow dome ringed by recessed light fixtures.
The entrance to the hall bears an inscription from the Gulistan by Iranian poet Saadi.

Original plans called for the back wall of the General Assembly Hall, behind the rostrum, to be adorned with the seals of the sixty countries that were part of the UN in 1952.
Though fifty-four seals were eventually completed, these plans were scrapped in 1955 because Secretary-General Dag Hammarskjöld felt they would distract from the purpose of the room.
The General Assembly Hall was last altered in 1980 when capacity was increased to accommodate the increased membership.
Each of the 192 delegations has six seats in the hall with three at a desk and three alternate seats behind them.

The second floor of the building houses the Economic and Social Council (ECOSOC) chamber, which was a gift from Sweden.
It was designed by Sven Markelius and was renovated in 2013.
This renovation added a set of curtains named "Dialogos" by Ann Edholm.
The General Assembly Building, housing the United Nations General Assembly, holds the General Assembly Hall, which has a seating capacity of 1,800. At 165 ft (50 m) long by 115 ft (35 m) wide, it is the largest room in the complex.
The Hall has two murals by the French artist Fernand Léger. At the front of the chamber is the rostrum containing the green marble desk for the President of the General Assembly, Secretary-General and Under-Secretary-General for General Assembly Affairs and Conference Services and matching lectern for speakers. Behind the rostrum is the UN emblem on a gold background. Flanking the rostrum is a paneled semi-circular wall that tapers as it nears the ceiling and surrounds the front portion of the chamber. In front of the paneled walls are seating areas for guests and within the wall are windows which allow interpreters to watch the proceedings as they work. The ceiling of the hall is 75 ft (23 m) high and surmounted by a shallow dome ringed by recessed light fixtures. The entrance to the hall bears an inscription from the Gulistan by Iranian poet Saadi.
Original plans called for the back wall of the General Assembly Hall, behind the rostrum, to be adorned with the seals of the sixty countries that were part of the UN in 1952. Though fifty-four seals were eventually completed, these plans were scrapped in 1955 because Secretary-General Dag Hammarskjöld felt they would distract from the purpose of the room. The General Assembly Hall was last altered in 1980 when capacity was increased to accommodate the increased membership. Each of the 192 delegations has six seats in the hall with three at a desk and three alternate seats behind them.
The second floor of the building houses the Economic and Social Council (ECOSOC) chamber, which was a gift from Sweden. It was designed by Sven Markelius and was renovated in 2013. This renovation added a set of curtains named "Dialogos" by Ann Edholm.
Headquarters of the United Nations