Open Geometry Problems

• Combinatorial Geometry Open Problems  - By Pavel Valtr. Includes crossing families, empty hexagons, and non-empty strips.
• The Geometry Junkyard Open Problems  - Links to various open problem websites. Compiled by David Eppstein.
• Mesh Generation Open Problems  - By David Eppstein of the ICS Theory Group. From the Mesh Generation for Graphics and Scientific Computation seminar.
• Open Problems by Jeff Erickson  - Problems includes existence problems, combinatorial problems and algorithmic problems. With links to other open problem sites.
• The Open Problems Project  - Open problems of interest to researchers in computational geometry and related fields. Edited by Erik D. Demaine, Joseph S. B. Mitchell, Joseph O'Rourke.