This bold, beehive-looking structure is one of the most iconic buildings in Midtown Manhattan and the centerpiece of Hudson Yards. This spiral staircase has 154 interconnecting flights of stairs, and together with its reflective copper metal exterior, creates a surreal appearance and unique photo op. It also offers amazing views of the city and river from different vantage points. Although the upper floors are currently closed to the public, you can access the ground level for free. It's a great stop to make if you're heading to Bella Abzug Park, or on a tour of Hudson Yards and The High Line. – Tripadvisor