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

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

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

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

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

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

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

Woolworth Building, engine room N.E. corner.

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

Woolworth Building, engine room looking N.E.

Woolworth Building, engine room looking S.W.

Woolworth Building, engine room from center looking N.E.

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

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

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

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

Woolworth Building, sub-cellar from center looking N.E.

Woolworth Building. Engine room from S.E. corner.