When Dumbo developer David Walentas boasts that the apartment he’s creating at the pinnacle of the 1915 ClockTower building is going to be “one of the most spectacular in the world,” it doesn’t even sound that overhyped. What’s now raw space will eventually be a 6,000-square-foot triplex with a new copper roof, skylights, and a private elevator—all very impressive, but a mere backdrop to the four fifteen-foot-high glass-and-iron clock faces that form the walls (pictured here, the west and north views). The price? To be determined (1 Main St, nr. Plymouth St., Dumbo, Brooklyn; 718-222-2500 for inquiries).