Woolworth Building. Swimming tank.

Woolworth Building, swimming tank from S.E. corner.

Woolworth Building, basement room over swimming tank, view from entrance.

Woolworth Building, sub-basement swimming pool from S.W. corner.

Woolworth Building, switchboard.

Woolworth Building, vault.

Woolworth Building, switchboard.

Woolworth Building, boiler room.

Woolworth Building, engine room.

Woolworth Building. Pump room.

Woolworth Building. Boiler room.

Woolworth Building

Woolworth Building, engine room.

Woolworth Building. Engine room.

Woolworth Building. Grand staircase.

Woolworth Building. Grand staircase.

Woolworth Building, boiler room.

Woolworth Building, general exterior.

Woolworth Building, engine room.

Woolworth Building, Broadway looking south.