1. You can either take Bus No. 82 from national stadium east to Tiananmen east, or you can take Beijing Subway Line 8(https://www.travelchinaguide.com/cityguides/beijing/transportation/subway-line8.htm) to beitucheng, change to Beijing Subway Line 10(https://www.travelchinaguide.com/cityguides/beijing/transportation/subway-line10.htm) to huixinxijie nankou, change to Beijing Subway Line 5(https://www.travelchinaguide.com/cityguides/beijing/transportation/subway-line5.htm) to Dongdan, and then change to Beijing Subway Line 1(https://www.travelchinaguide.com/cityguides/beijing/transportation/subway-line1.htm) to Tiananmen(https://www.travelchinaguide.com/attraction/beijing/tianan.htm).
2. Take Subway Line 8 to beitucheng, change to Subway Line 10 to Anzhenmen, transfer to Bus No. 124 to Forbidden City(https://www.travelchinaguide.com/cityguides/beijing/forbidden.htm).
3.Take Subway Line 8 to beitucheng, change to Subway Line 10 to Mudanyuan, exit from the southeast exit and walk eastward to take Bus No. 919 the Great Wall.