AurelioZen: Zwolle curves
Luc Vangindertael - laGrange: Winter four forty-five p.m.
No Great Hurry: Simple Abstract 55
Klaus Ressmann: BlackLines.jpg
Ulrich Neitzel: Melting lattice
2n2907: Confusing Geometry
FaHa9: The Half-landing
Carl Vanassche: DSC_5874
www.krall-photography.com: Seiling pattern
mvdreijden: pigeonholing
bernard.saubot: Urban geometry
Jana_Apergis: Within the Red
msdonnalee: artsy grill detail
Acte #II: Red School
Klaus Ressmann: WebLines.jpg
Carl Vanassche: DSC_3508 - Version 2
Benpassionefoto: Architecture
AurelioZen: Eemhuis - Reading room (Leeszaal) (2)
FaHa9: Spiraling Up
bkkay1: Snow cone.
Karen_Chappell: Window, Vent, Lines
achim brandt: tanzende türme
Jean-Louis DUMAS: Calder La Défense
berholz: tragfähig
Mɐɹ⅁oʇ: BleuCiel
antonkimpfbeck: " Spiegel-Raute "
Carl Vanassche: Tunneling II