Wat Pho is a large temple complex with numerous religious buildings, hundreds of Buddhas, and a massage school. Stop first at the reclining Buddha, which at 15 meters (50 feet) high and 46 meters (151 feet) long is truly gigantic. Make your way around the outside of the complex to the massage school, and book a one-hour Thai massage for 420 baht (about $14) each. The massage will be a welcome break.
Most of the buildings on the site are worth visiting; there are several temples with impressive (if not as awesome as the enormous reclining Buddha) Buddha statues; temple courtyards lined with more Buddha statues, and a series of pagodas. Wat Pho tends to be much less crowded than the Grand Palace, and it has a much more peaceful atmosphere that makes for a more enjoyable visit.
Hours: Daily 8:30-6