Lalanne Chairs, a Frank Lloyd Wright Urn, and a $2 Million Tiffany Lamp: The Best of This Week's Design Auctions

These aluminum-and-walnut dove chairs will add whimsy to any garden or terrace. "The heads rotate—you can position them in any direction that you want so they can be in conversation with each other," says Kim Miller, head of Sotheby’s 20th-century design department. Plus, she says, "this model has never come to auction before, so it's an opportunity to acquire something incredibly rare by Lalanne."

From Sotheby's Important Design sale from the collection of Dick and Jane Stoker. Estimate: $70,000–$100,000.