triangle, blue, red
penrose triangle, penrose tribar, impossible tribar
sheep, lamb, warning
beads in triangles, triangle, preciosa beads
geometric, triangle, design
colorful, rainbow, gradient
penrose triangle, the impossible triangle, optical ilusion
bermuda triangle, ocean, bermuda
polygon, polygonal, gold
penrose triangle, the impossible triangle, optical ilusion
brick, truss, half-timbered house
ufo, spaceship, alien
