Which line does Xi An Tang Cheng Hotel take?

The third line. According to Baidu map information, there is Metro Line 3 near Xi 'an Tang Cheng Hotel, with many bus lines and convenient transportation. You can take Line 3 to the hotel directly. Xi 'an, referred to as "Gao", was called Chang 'an and Haojing in ancient times. It is a prefecture-level city under the jurisdiction of Shaanxi Province, the capital and sub-provincial city of Shaanxi Province.