窟

销金窟

xiāo jīn kū

money squandering establishment (e.g. gambling den, brothel etc)

云冈石窟

yún gāng shí kū

Yungang Caves at Datong 大同, Shanxi 山西

魔窟

mó kū

lit. nest of devils

麦积山石窟

mài jī shān shí kū

Mt Maiji Caves at Tianshui 天水, Gansu

龙门石窟

lóng mén shí kū

Longmen Grottoes at Luoyang 洛陽|洛阳[Luo4 yang2], Henan

吴哥窟

wú gē kū

Angkor Wat, temple complex in Cambodia

四大石窟

sì dà shí kū

the four great caves, namely: Longmen Grottoes 龍門石窟|龙门石窟[Long2 men2 Shi2 ku1] at Luoyang, Henan, Yungang Caves 雲岡石窟|云冈石窟[Yun2 gang1 Shi2 ku1] at Datong, Shanxi, Mogao Caves 莫高窟[Mo4 gao1 ku1] at Dunhuang, Gansu, and Mt Maiji Caves 麥積山石窟|麦积山石窟[Mai4 ji1 Shan1 Shi2 ku1] at Tianshui, Gansu

敦煌石窟

dūn huáng shí kū

refers to Mogao caves 莫高石窟[Mo4 gao1 shi2 ku1]

洞窟

dòng kū

a cave

狡兔三窟

jiǎo tù sān kū

lit. a crafty rabbit has three burrows

石窟

shí kū

rock cave

窟窿

kū long

hole