Battery Park City in NYC is a planned community notable for its high-end residential areas and green spaces, similar to Diamond Island (Koh Pich) in Phnom Penh, which is also a developing upscale area with modern amenities. Diamond Island, or Koh Pich, is a relatively new and affluent neighborhood that has been rapidly developed over the past decade in Phnom Penh. It sits at the confluence of the Mekong and Bassac rivers, just a short drive from the bustling city center. This modern enclave is marked by high-rise luxury condominiums, commercial buildings, and ambitious architectural projects that aim to create an urban oasis. Koh Pich is home to elite residential complexes, international businesses, and entertainment venues, including the sprawling Koh Pich City Hall which hosts major events and exhibitions. The island boasts broad boulevards, manicured gardens, and cultural landmarks such as the intricately carved Cambodia-Vietnam Friendship Monument. With its own amusement park, shopping malls, and exhibition centers, Diamond Island is becoming a symbol of the city’s cosmopolitan future, catering to both affluent locals and expatriates.