Answer : 3. "Kempegowda International Airport"
Explanation :

Terminal 2 (T2) of Bengaluru's Kempegowda International Airport was recognized in UNESCO's 2023 Prix Versailles. T2 earned a special award for its interior and was recognized as one of the most aesthetically pleasing airports in the world. The Prix Versailles emphasizes values such as intelligent sustainability, innovation, reflection of local heritage, ecological efficiency and social interaction. T2 is aptly named “Terminal in a Garden.”