modern spiral stairs

architectural colorful en abstract angle angles architecture art assignment background blue building business circular commerce commercial construction crystal curve curved cycloid decorate decorated decoration design detail details device down downstairs downward edifice electric electrical electronics engineering family fitment fixture geometry hall handrail helical home hotel house indoor interior interiors ladder lamp led light lighting lit luxurious luxury night office platform plaza project rail railing rails render roof room round shape shapes square stair staircase stairway step structure team upstairs upward view white work yellow