Tourists take photos in a sunflower farm in Lopburi province, Thailand, Dec. 14, 2020. Lopburi province is home to the biggest sunflower fields of Thailand. Thousands of acres are filled with this beautiful bright yellow flower that is in blossom between November and January. (Xinhua/Zhang Keren)

Aerial photo shows a sunflower farm in Lopburi province, Thailand, Dec. 14, 2020. Lopburi province is home to the biggest sunflower fields of Thailand. Thousands of acres are filled with this beautiful bright yellow flower that is in blossom between November and January. (Xinhua/Zhang Keren)

Tourists visit a sunflower farm in Lopburi province, Thailand, Dec. 14, 2020. Lopburi province is home to the biggest sunflower fields of Thailand. Thousands of acres are filled with this beautiful bright yellow flower that is in blossom between November and January. (Xinhua/Zhang Keren)

Aerial photo shows a sunflower farm in Lopburi province, Thailand, Dec. 14, 2020. Lopburi province is home to the biggest sunflower fields of Thailand. Thousands of acres are filled with this beautiful bright yellow flower that is in blossom between November and January. (Xinhua/Zhang Keren)

Aerial photo shows tourists visiting a sunflower farm in Lopburi province, Thailand, Dec. 14, 2020. Lopburi province is home to the biggest sunflower fields of Thailand. Thousands of acres are filled with this beautiful bright yellow flower that is in blossom between November and January. (Xinhua/Zhang Keren)

Tourists take photos in a sunflower farm in Lopburi province, Thailand, Dec. 14, 2020. Lopburi province is home to the biggest sunflower fields of Thailand. Thousands of acres are filled with this beautiful bright yellow flower that is in blossom between November and January. (Xinhua/Zhang Keren)

Aerial photo shows a sunflower farm in Lopburi province, Thailand, Dec. 14, 2020. Lopburi province is home to the biggest sunflower fields of Thailand. Thousands of acres are filled with this beautiful bright yellow flower that is in blossom between November and January. (Xinhua/Zhang Keren)

Tourists take photos in a sunflower farm in Lopburi province, Thailand, Dec. 14, 2020. Lopburi province is home to the biggest sunflower fields of Thailand. Thousands of acres are filled with this beautiful bright yellow flower that is in blossom between November and January. (Xinhua/Zhang Keren)