To resolve this issue he invented the sky lobby.

At the lower end of the impact, the 78th-floor sky lobby, hundreds had been waiting to evacuate when the plane hit.

There is a sky lobby on the 37th and 38th floors.

The 11th and 12th floors serve as a sky lobby.

Of the dozens of people waiting in the sky lobby when the second plane struck, 12 are known to have made it out alive.

However, the sky lobby has been closed to the public due to security reasons after the September 11, 2001 attacks.

It is not a sky lobby because residents can also board elevators to higher floors at floor 44.

On the 51st floor is a sky lobby and observation deck, which due to security reasons is no longer open to the public.

The sky lobbies on the 43rd and 76th floors house swimming pools.

The 44th-floor sky lobby features America's highest indoor swimming pool.