Wat Phra That Phanom is a Buddhist temple located in the Nakhon Phanom Province of Thailand. It is one of the most important and revered temples in Thailand, and is believed to contain a relic of the Buddha's breastbone.

The temple complex features a large chedi (stupa) that is over 50 meters tall and is covered in gold leaf. The chedi is surrounded by smaller chedis and other structures, including a large prayer hall and several smaller shrines.

According to legend, the original chedi was built over 2,000 years ago by the legendary Indian emperor Ashoka, who sent a group of monks to spread Buddhism throughout Southeast Asia. The current chedi was built in the 1970s and features a blend of traditional Thai and modern architecture.

The temple is an important pilgrimage site for Thai Buddhists, who come from all over the country to pay their respects to the Buddha's relic and to make merit. The temple also attracts many international visitors who come to admire its beautiful architecture and learn about Thai Buddhism.

Visitors to Wat Phra That Phanom should dress modestly and remove their shoes before entering the temple complex. The temple is open daily from early morning until late afternoon, and admission is free.