Absolutely, I'd love to help you plan your 4-day adventure in Beijing! Let's dive into your exciting itinerary:

Day 1:

• Start your day with a visit to the iconic Tiananmen Square, the largest public square in the world. Don't miss the chance to see the impressive Monument to the People's Heroes and the Mausoleum of Mao Zedong.
• Next, head to the Forbidden City, a UNESCO World Heritage Site and the former imperial palace of China. Explore the grand halls, beautiful gardens, and learn about the history of the Ming and Qing dynasties.
• In the afternoon, take a leisurely stroll through the historic Hutongs, traditional narrow alleys lined with courtyard homes. You can even opt for a rickshaw ride to immerse yourself in the local culture.
• End your day with a visit to the Wangfujing Street for some shopping and delicious street food. Don't miss trying the famous Beijing roast duck for dinner!

Day 2:

• Start your day early with a visit to the Temple of Heaven, a masterpiece of Ming dynasty architecture where emperors used to pray for good harvests.
• Afterward, head to the Summer Palace, a stunning imperial garden with a beautiful lake, pavilions, and bridges. Take a boat ride on Kunming Lake for a unique perspective of the palace.
• In the evening, catch a traditional Peking Opera performance at the Liyuan Theatre for a cultural experience like no other.

Day 3:

• Begin your day by visiting the Great Wall of China at Mutianyu, one of the best-preserved sections of the wall. Hike along the wall and soak in the breathtaking views of the surrounding mountains.
• After your Great Wall adventure, visit the Ming Tombs, the final resting place of 13 Ming dynasty emperors. Explore the grand architecture and learn about the history of the Ming dynasty.
• In the evening, head to the Sanlitun area for a taste of Beijing's vibrant nightlife. Enjoy dinner at a local restaurant and explore the trendy bars and clubs in the area.

Day 4:

• Start your day with a visit to the Lama Temple, one of the largest and most important Tibetan Buddhist monasteries in the world. Marvel at the intricate architecture and giant Buddha statue.
• Next, explore the 798 Art District, a thriving arts community housed in a former factory complex. Discover galleries, studios, and street art that showcase Beijing's contemporary art scene.
• Wrap up your Beijing adventure with a visit to the National Stadium, also known as the Bird's Nest, a stunning architectural marvel from the 2008 Beijing Olympics. Take a leisurely walk around the stadium and snap some memorable photos.

I hope this itinerary gives you a good mix of historical sites, cultural experiences, and modern attractions to make the most of your 4 days in Beijing. Enjoy your trip!