Woolworth Building, engine room from S.W. corner.

Woolworth Building, boiler room from N.W. corner.

Woolworth Building, boiler room from N.W. corner.

Woolworth Building, exterior from S.W. corner.

Woolworth Building, engine room from S.W. corner looking west.

Woolworth Building, sub-basement from N.E. corner room from S.W. corner.

Woolworth Building, engine room from S.W. corner looking N.E.

Woolworth Building, sub-cellar S.W. corner.

Woolworth Building, engine room looking S.W.

Woolworth Building, from N.E. corner looking S.W.

Woolworth Building, basement large room, S.W. corner view from east end.

Woolworth Building, detail S.W. corner Barclay Street.

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

Woolworth Building, boiler room from N.E. corner.

Woolworth Building, sub-basement engine room from S.W. corner looking N.E.

View from Woolworth Building roof looking at S.W. corner of building.

Woolworth Building, from Broadway looking S.W.

Woolworth Building, Broadway N.E. corner. looking S.W.

Woolworth Building, from Broadway looking S.W.

Woolworth Building, sub-cellar looking toward S.W. corner.