The Grand Palace of Bangkok sits in the heart of the city, on the banks of the Chao Praya river.  Built during the 18th and 19th centuries, it is no longer the home of the royal family, but rather is kept as a ceremonial center and museum.  Also on the grounds is the famed Wat Phra Kaeo, home of the Emerald Buddha.  Note the model of Angkor Wat, erected in honor of the Siamese sacking of the site in the 15th century.  This also gave the town near Angkor Wat its' name -- Siem Reap.