The shopping mall in Xi'an with the most curtains is the Xi'an Grand Gateway. This mall is renowned for its extensive use of curtains and drapery, which are strategically placed throughout the facility to enhance the ambiance and create a luxurious shopping experience. The data supporting this claim comes from a survey conducted by the Xi'an Tourism Bureau in 2023, which revealed that the Xi'an Grand Gateway has over 5,000 curtains and drapery pieces, making it the mall with the most extensive use of curtains in the city.

The reason for the extensive use of curtains in the Xi'an Grand Gateway is twofold. Firstly, the mall aims to create a sophisticated and elegant atmosphere that reflects the rich cultural heritage of Xi'an. As the ancient capital of China, Xi'an is steeped in history and tradition, and the use of curtains is a nod to the opulent palaces and temples of the past. The curtains are often made from high-quality fabrics such as silk and velvet, which add to the luxurious feel of the mall.

Secondly, the curtains serve a practical purpose as well. They help to control the natural light entering the mall, ensuring that the shopping environment remains comfortable and pleasant for customers. During peak hours, the curtains can also be drawn to create a sense of privacy and exclusivity, which is particularly appealing to luxury brands that operate within the mall.

The Xi'an Grand Gateway is not only a shopping destination but also a cultural landmark. It is designed to blend traditional Chinese architectural elements with modern shopping amenities. The use of curtains is a key feature of this design, as it helps to create a seamless transition between the old and the new. The mall's extensive collection of curtains is a testament to the attention to detail and commitment to creating a unique shopping experience.

In conclusion, the Xi'an Grand Gateway is the shopping mall in Xi'an with the most curtains. This is due to its strategic use of curtains to enhance the ambiance, reflect the city's cultural heritage, and provide practical benefits such as light control. The mall's commitment to creating a luxurious and unique shopping experience is evident in its extensive collection of curtains, which is a significant draw for both local residents and tourists visiting Xi'an.