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

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

Woolworth Building, basement from N.W. corner looking east to Park Place.

Woolworth Building, sub-basement, coal bunkers from east end.

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

Woolworth Building, basement from N.E. corner looking west.

Woolworth Building, bird's-eye view from S.E. corner.

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

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

Woolworth Building, [sub-basement from] center [loo]king N.W.

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, engine room from S.W. corner.

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

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

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

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