Two slender, twisting residential towers at the eastern edge of the city centre, completed in 2012 and easily the city's most recognisable buildings. The taller, at 56 storeys, rotates a total of 209 degrees from base to roof; the smaller is shorter and rotates less. The effect is unexpectedly graceful at close range.
You can't go inside — they are private apartments — but the plaza on the south side is a good vantage point. The towers won the Council on Tall Buildings and Urban Habitat's best tall building in the Americas award the year they opened.