Photo: xiquinhosilva, CC BY 2.0 via Wikimedia Commons
Beihai is a former imperial garden centred on a lake with interesting religious and garden architecture. There's a big island and white pagoda which was built in the 17th century. The giant buildings westward outside are PRC's Ministry of Defence and General Staff, which, to be honest, ruin the scene of the west bank. On the north bank, you can visit some small but beautiful gardens. Beihai is a good place to take a glance at Zhongnanhai (中南海 Zhōngnánhǎi), heart of Communist China (see separate listing below).
Beihai Park is a public park and former imperial garden immediately northwest of the Forbidden City in Beijing, China.
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梅兰芳纪念馆 Méilánfāng Jìniànguǎn
Museum showing the life of Mei Lanfang (1894-1961). Mei was the greatest star of Peking Opera, acting for more than 50 years, primarily playing female roles. Furniture as well as costumes and other opera stuff are exhibited here.
恭王府花园 Gōngwángfǔ Huāyuán
The mansion displays the life of princes during the Qing dynasty. The garden is packed with Chinese tourists. The mansion stages Peking Opera and magic shows now and then.
中南海
This former imperial garden centered on two lakes is now the headquarters of China's government and ruling party. The compound is not to the public, but you can take a photo in front of the distinctive south gate and revolutionary slogans fronting West Chang'an Avenue. You can also see the back of the compound from the south side of Beihai Park, from which it is separated by a bridge.
人民剧场 Rénmín Jùchǎng
Various events are held here.