Day 1: Morning at Tiananmen Square and Forbidden City (book tickets 7 days in advance); afternoon at Jingshan Park for panoramic city views; evening shopping on Wangfujing Street. Day 2: Full-day trip to the Great Wall (Badaling/Mutianyu) + Ming Tombs (optional: Changling Mausoleum). Take the high-speed train or suburban railway for round-trip convenience. Day 3: Morning visit to Temple of Heaven; afternoon explore Summer Palace (focus on Kunming Lake and the Long Corridor); evening wander through Nanluoguxiang Hutong, followed by Peking duck dinner (e.g., at Siji Minfu). The itinerary focuses on urban and suburban areas, with convenient subway/taxi access. Arrive at popular sites before 8:00 AM to avoid crowds.