hàn gū
Hangu former district of Tianjin, now part of Binhai subprovincial district 濱海新區|滨海新区[Bin1 hai3 xin1 qu1]
汉
hàn
the Han dynasty (206 BC-220 AD)
沽
gū
abbr. for Tianjin 天津 (also 津沽)