Also referred to as the 'Temple of Dawn', the Wat Arun is one of the finest temples in the capital. It's actually named Wat Arun Ratchawararam Ratchawaramahawihan, but since it's quite a bit of a mouthful, its mostly called as just 'Wat Arun'. One of the best highlights of the majestic temple is the golden tower, which presents an amazing sight at any time of the day, especially at sunset. The temple is built according to the ancient Khmer style, which existed during the first half of the 19th century. There's so much to see at the Wat Arun temple, including the beautiful architecture, so it's best that you allocate at least one hour for a visit. An entrance to the temple costs 100 baht, which is only about 3 dollars.
One of the best ways of experiencing Wat Arun would be to reach it by a shuttle boat along the Chao Praya. This will cost you only 3 baht.