Senses
函谷关/ 函谷關 Old Hangu Pass
A strategic mountain pass in modern-day Lingbao, Henan, established by the State of Qin; known for its deep, box-like valley and role as the eastern gateway to the Qin State
函谷关/ 函谷關 New Hangu Pass
A historical pass in modern-day Xin'an, Henan, established in 114 BC during the Han Dynasty when the pass was moved 300 li east of the original location