Above: the quintessential modernist staircase by Le Corbusier, Villa Savoye (1930).
Staircase of the Martin May House in Chicago (1941), by Samuel Marx
A curvaceous staircase, designed by architect Rafael Viñoly, Salon 94, New York.
Staircase by I.M. Pei at the Museum for Contemporary Art in Luxembourg
Staircase by Isay Weinfeld
Spiral Staircase by Wharton Esherick, Bok House, Philadelphia, 1938