My first entry. Taken free hand, unrotated.
The newest building in Durham looking up and through to the sky. A new building which is a real winner for me although many conservative people in Durham think it is out of place.
A triangle emerges under the hot Texas sun.:D13 triangles in all!:DSpecial thanks to {{Buffmufin}}
Many triangles at Chrysler Building in NY
I never realized that the afternoon sun on the vertical blinds created triangular shadows on the window sill until I started looking for triangles for this contest!