楼

surname Lou

house with more than 1 story / storied building / floor / CL:層|层[ceng2],座[zuo4],棟|栋[dong4]

surname Lou / one of the 28 lunar mansions in Chinese astronomy

(bound form) tree / (bound form) wood / unresponsive; numb; wooden

to go upstairs

the Pentagon

apartment building / CL:座[zuo4]

office building / CL:座[zuo4],棟|栋[dong4]

main building

office building

the people are gone and the place is empty (idiom) / the sight of a deserted place brings old friends to mind / the place is deserted / the birds have flown

dangerous housing / building that is about to collapse

airport terminal

residential building / CL:幢[zhuang4],座[zuo4],棟|栋[dong4]

house overhanging a river, supported at the rear by stilts / house built in a hilly area, supported by stilts

tenement building, typically of 2-4 stories, with a shop on the ground floor and upper floors used for residential purposes (esp. in southern China)

towering buildings are built up from the ground (idiom) / great oaks from little acorns grow

office building

to go downstairs

see 亭臺樓閣|亭台楼阁[ting2 tai2 lou2 ge2]

World Trade Center (the twin towers destroyed by the 9-11 terrorists)

pavilions and kiosks (in Chinese gardens)

apartment building

variant of 出婁子|出娄子[chu1 lou2 zi5]