Wat Arun (Thai: วัดอรุณ, Thai pronunciation: [wát arun], "Temple of Dawn") is a Buddhist temple (wat) in the Bangkok Yai district of Bangkok, Thailand, on the Thonburi west bank of the Chao Phraya River. The full name of the temple is Wat Arun Ratchawararam Ratchawaramahawihan (วัดอรุณราชวรารามราชวรมหาวิหาร). Wat Arun is among the best known of Thailand's landmarks. The temple is so named because the first light of the morning reflects off the surface of the temple with pearly iridescence. Although the temple had existed since at least the seventeenth century, its distinctive prang (spires) were built in the early nineteenth century during the reign of King Rama II.
The blue hour (from the French expression l'heure bleue, is the period of twilight each morning and evening where there is neither full daylight nor complete darkness. The time is considered special because of the quality of the light.
I was standing there since 5 in the morning, I took a taxi from the hotel and reached the other side of the river, the scene was breath taking, it was an amazing experience just to stand there, but behind the scenes, there was plenty of mosquitos and lots of sweat as the was weather was extreamly humid and so hot.
Enjoy the shot.