Old Town of Lijiang

 This postcard was sent by Bin

Dafeng Milu Nature Reserve

 This postcard was sent by Wei

Yancheng Wetland Rare Birds Nature Reserve

 This postcard was sent by Wei

1924 British Mount Everest Expedition

 In 1924 Nepal was still a "forbidden country" for westerners.

1921 British Mount Everest Reconnaissance Expedition

 At the time of this expedition Nepal was closed to foreigners, so any approach had to be from the north, through Tibet.

Panda

 This postcard was sent by Kiara

Temple of the Ordination Altar (Jietai)

 This postcard was sent by Haomin