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

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

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

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

Woolworth Building, from Broadway looking S.W.

Woolworth Building, from Broadway looking S.W.

Woolworth Building, engine room looking N.W.

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

Woolworth Building, from center Broadway looking S.W.

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

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

Woolworth Building, south section from Broadway looking S.W.

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

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

Woolworth Building, engine room looking N.E.

Woolworth Building, engine room from near center looking S.E.

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

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

Woolworth Building, exterior from S.W. corner.

Woolworth Building, engine room.