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

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

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

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

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

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

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

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

Woolworth Building, exterior from N.W. corner.

Woolworth Building, from Broadway looking S.W.

Woolworth Building, from Broadway looking S.W.

Woolworth Building, exterior from S.E. corner.

Woolworth Building, exterior from S.E. corner.

Woolworth Building, exterior from S.E. corner.

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

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

Woolworth Building, exterior from S.E. corner.

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

Woolworth Building, from center Broadway looking S.W.

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