Dubai typically hogs the limelight with its ambitious projects, but now Abu Dhabi is defying gravity with this glassy 35-story landmark—the world’s furthest-leaning man-made tower. The glinting 18-degree tilt (four times more than that of Pisa’s leaning tower) catches your eye among the city’s jumble of skyscrapers and cranes. You can’t miss it on the drive to the Grand Mosque, but to get a peek inside, book a stay at the Hyatt Hotel slated to open in mid-to-late 2011.