Call yourself a stair master? Put yourself to the ultimate test with our world-famous annual Run-Up! Comprised of 1,576 steps, runners will cross the finish line atop our 86th floor Observatory. Registration closes on December 10th! bit.ly/2A1sKzU (link in bio) #ESBRU #EmpireStateBuilding 🏃‍♂️🏃‍♀️