Taking subway to the Summer Palace or the Forbidden City

Summber Palace: take subway line 4 from "East Gate of Peking University" and get off at "Beigongmen" station.

Forbidden City: take subway line 4 from "East Gate of Peking University" to "Xidan" station, and then transfer to take subway line 1 and get off at the "Tian'anmen East" station.