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

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

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

Woolworth Building, sub-cellar Park Place side, looking S.W. at shoring.

Woolworth Building, sub-cellar lower level from center looking S.W.

Woolworth Building, exterior from S.W. corner.

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

Woolworth Building, sub-cellar, pit in N.W. corner.

Woolworth Building, sub-cellar, laying floor in N.W. corner of pit.

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

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

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

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

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

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

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

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

Woolworth Building, from Broadway looking S.W.

Woolworth Building, sub-cellar Park Place side, looking at shoring.

Woolworth Building, sub-cellar looking N.E. along Broadway side.