It’s Richard Neutra’s masterpiece in Palm Springs, California. “Christie’s is gambling that the house’s extraordinary pedigree will move it into the realm of art rather than real estate. Otherwise, its tract-house size (five bedrooms, 3,200 square feet) and unglitzy appointments (small bedrooms, ranch- house-style closets) would preclude such a stratospheric valuation. Only massive, super-luxurious estates charge this kind of price in Palm Springs.”