The architecture features intricate white stone carvings typical of North Indian temple or palace design. The festive lighting and the traditional attire of the people suggest a wedding or a religious celebration in India. The style of the columns and the lattice work strongly point toward a cultural landmark in a major city like Jaipur or Udaipur. I suspect this is a wedding venue or temple in Rajasthan, India. I am moderately sure.

then: guess