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

Woolworth Building, exterior from S.W. corner.

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

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

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

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

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

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

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

Broadway between Barclay Street and Park Place. Woolworth Building foundation work, bird's-eye view from S.W. corner.

Broadway between Barclay Street and Park Place. Woolworth Building foundation work, bird's-eye view from S.W. corner.

Woolworth Building, New Section S.W. Corner [Construction zone.]

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

Woolworth Building, from Broadway looking S.W.

Woolworth Building, engine room looking S.W.

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

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

Woolworth Building, from Broadway looking S.W.

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

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