Picture this: Your local McDonald’s Playland is purchased jointly by Austin Powers and Rainbow Brite (the ghost of Timothy Leary chips in with the financing), filled with candy-colored mod furniture, and transported to West London. Got it pictured? Then welcome to Ab Roberts’ Rainbow House. The architect behind this otherwise normal Georgian terrace home off Portobello Road explains this “living artwork” best: “The Rainbow House is a magical oasis on a busy road filled with people and noise. When you step through its front door, you enter a parallel universe of fun, color, movement and sensuality, leaving the ordinary world far behind.” And on the topic of behinds, that’s what one would sit on when flinging open the trapdoor in the master bedroom (which also includes a rotating circular bed) and propelling oneself down a slide that drops through the ceiling and straight into the living room below. Or, as an alternative, one could opt to take the 52-step spiral staircase painted in 26 different eye-popping colors.