This document presents the results of the Millennial Destination Desirability Index, which ranks cities based on criteria in categories like sustainability, livability, social opportunities, and attractions. Amsterdam ranks as the most green-friendly city due to its bike infrastructure, water conservation, and eco-friendly hotels. Manila ranks as the most livable city for its affordable cost of living and services. Sao Paulo has the most geo-tagged Instagram posts, reflecting its vibrant culture, food, art, and nightlife that attract millennials. The document discusses what makes various top-ranked cities appealing destinations for millennials.