Guanziling
Encyclopedia
Tainan
Tainan City is a city in southern Taiwan. It is the fifth largest after New Taipei, Kaohsiung, Taichung, and Taipei. It was formerly a provincial city, and in 2010, the provincial city merged with the adjacent Tainan County to form a single special municipality. Tainan faces the Taiwan Strait in...
is one of the most famous hot spring
Hot spring
A hot spring is a spring that is produced by the emergence of geothermally heated groundwater from the Earth's crust. There are geothermal hot springs in many locations all over the crust of the earth.-Definitions:...
sites in Taiwan
Taiwan
Taiwan , also known, especially in the past, as Formosa , is the largest island of the same-named island group of East Asia in the western Pacific Ocean and located off the southeastern coast of mainland China. The island forms over 99% of the current territory of the Republic of China following...
. This rare spring releases methane
Methane
Methane is a chemical compound with the chemical formula . It is the simplest alkane, the principal component of natural gas, and probably the most abundant organic compound on earth. The relative abundance of methane makes it an attractive fuel...
, which has been burning constantly
Eternal flame
An eternal flame is a flame or torch that burns day and night for an indefinite period. The flame that burned constantly at Delphi was an archaic feature, "alien to the ordinary Greek temple"....
for around three centuries.