long spiral staircase in triangular . staircase of the observation tower in the teichland amusement park in brandenburg.

architecture interior triangle stair ladder black shape construction building shadow object travel detail authentic elements urban blue attraction traditional mediterranean conceptual background green pattern texture design colorful color abstract wallpaper art grunge artistic wall decorative modern concept street light surface old textured city white geometry pondland brandenburg railing long spiral staircase triangular shape observation tower teichland amusement park brandenburg geometric triangles