Polyhedral Sundial
Tomsich
Sundial
Dennis D. Potokar
Sundial 2 Of 3
Science Stock Photography
Sundial
Andrew J. Martinez
Sundial 3 Of 3
Science Stock Photography
Sundial 1 Of 3
Science Stock Photography
Polyhedral Sundials
Tomsich
Sundial, Ca. 1700
Science Source
Roman Sundial, Pompeii
Science Source
Hand In Suns Rays Over Sundial And Wave
Ikon Ikon Images
16th Century Sundial And Wind Rose
Tomsich
Elderly Man Explaining Sundial To Boy
H. Armstrong Roberts/ClassicStock
Historical Scientific Instruments
Gianni Tortoli
Historical Scientific Instruments #1
Gianni Tortoli
Archeoastronomy, Jantar Mantar #1
Kenneth Murray
Jantar Mantar Observatory
Kenneth Murray
Timepieces
Erich Schrempp
Archeoastronomy, Jantar Mantar
Kenneth Murray
Bronze Compass, Ming Dynasty
Science Source
Magnetic Compass
Photo Researchers
Regiomontanus, German Mathematician #1
Science Source
Chinese Compass
Photo Researchers
Bronze Compass, Ming Dynasty #2
Science Source
Regiomontanus, German Mathematician
Science Source
Towers Of The Virgin, Zion National
Rafael Macia
Curiosity Rover Looks Back At Tracks
Science Source
Bronze Compass, Ming Dynasty #1
Science Source
16th Century Altitude Dial
Science Source
Exclipse Over Desert
Mike Agliolo
Vietnam Memorial, Kentucky
David Davis