A one-day travel guide in Beijing is as follows: Morning: 1. For breakfast, you can go to Guijie Street, Dashilan or Nanluogu Lane to taste Beijing specialty snacks, such as tofu curd, pancake fruit, stinky tofu, etc.

2. Take the subway to the Palace Museum to visit the treasures of Chinese culture.

It is recommended to purchase tickets in advance to avoid waiting in line for too long.

Noon: 1. For lunch, you can go to a nearby restaurant to taste authentic Beijing roast duck.

2. You can visit Prince Gong’s Mansion and Donghuamen Street to feel the style of old Beijing.

Afternoon: 1. Go to the Summer Palace, visit the largest ancient royal garden in China, and appreciate the exquisite architecture and natural scenery.

2. Taste traditional snacks near the Summer Palace, such as hotpot mutton, fried liver, etc.

Evening: 1. For dinner, you can go to Sanlitun or Houhai Bar Street to experience the modern Beijing nightlife.

2. Finally, you can go to the night market on Wangfujing Street and taste various delicacies and special snacks.

The above is a specific one-day travel guide in Beijing. Of course, you can freely mix and adjust it according to your own time and preferences.