Chiapas, Falls of the River Cháncalá

Teobert Maler

X-radiograph(s) of "Portrait of a Man"

Hans Memling

Kegon Waterfall, Nikkō

Kawase Hasui 川瀬巴水

Rapids Below Vernal Fall, Yosemite Valley

Ansel Easton Adams

X-radiograph(s) of "Ariadne"

George Frederic Watts

Untitled (aerial view of helicopters taking off from clearing, Vietnam)

Gordon W. Gahan

Der wasserfall des Velino bei Terni

Wilhelm Friedrich Gmelin

Temple of the Sibyl, Tivoli, Italy

John Singer Sargent

Alaska, McKinley Range

Bradford Washburn

X-radiograph(s) of "Landscape"

Rembrandt Harmensz. van Rijn

Crater with Smoke

Robert Morris Hollanders Workshop, New York Castelli Graphics and Hollanders Workshop, NY

Christ Healing the Sick

Rembrandt Harmensz. van Rijn

Velino Falls Near Terni

Wilhelm Friedrich Gmelin

Untitled (nature abstraction)

Lucien Clergue

X-radiograph(s) of "Rape of Europa and Juno, Io and Jupiter"

Mariotto Albertinelli Giuliano Bugiardini Francesco Francia

Untitled (nature abstraction)

Lucien Clergue

Mt. Pala di Martino-Primiero Dolomites

Vittorio Sella

X-radiograph(s) of "Lucrezia Borgia ?"

Bartolomeo Veneto

X-radiograph(s) of "Blasted Elm"

Jacob van Ruisdael

X-radiograph(s) of "Landscape and Self-Portrait (double sided painting)The Beach at Concarneau"

Robert Henri

Matterhorn and Monte Rosa, Zermatt District, High Alps

Vittorio Sella

Untitled (nature abstraction)

Lucien Clergue

Untitled (aerial view of river valley from helicopter with profile silhouette of soldier in foreground, Vietnam)

Gordon W. Gahan

X-radiograph(s) of "Portrait of a Man"

Waterfalls, Intervale, New Hampshire

Denman Waldo Ross

Waterfall

Denman Waldo Ross

X-radiograph(s) of "Shipwreck on a Rocky Coast"

Albert Debray

[Trees]

Lyonel Feininger

Untitled (nude)

Lucien Clergue