A swanky four-bedroom, 4.5-bathroom penthouse with a wraparound terrace just hit the market for an even $18 million. But this isn't just any outdoor spaceit's designed by Dutch landscape designer Piet Oudolf of High Line fame. The seller is Beth Swofford, a "CAA motion picture literary uber-agent" who is also getting rid of her Sunset Strip home in LA. (The New York digs are waaaaaay more expensive.) Swofford bought at the swanky Soho Mews building in 2010where Justin Timberlake once had a placepaying "just" $9.975 million.