We recently showcased The 50 Coolest Staircases around the world, now we're back with another awesome interior space, this time from Melissa Marks and Vicente Caride's renovated apartment in NYC. The two embarked on a playful design that would turn their apartment into a vibrant space by incorporating thousands of LEGO bricks into their staircase. Designed by LEGO artist Sean Kenney, hit the thumbs for a closer look at Melissa and Vicente's colorful NYC interior design. [PSFK]