A steam engine tractor outside the Krabi Resort in Ao Nang, Krabi district, Thailand

A steam engine tractor outside the Krabi Resort in Ao Nang, Krabi district, Thailand in May 2016

Woman boiling eggs at Sankampaeng Hot Springs, Chiang Mai, Thailand

Woman boiling eggs at Sankampaeng Hot Springs, Chiang Mai, Thailand in September 2012

Geysers at Sankampaeng Hot Springs, Chiang Mai, Thailand

Geysers at Sankampaeng Hot Springs, Chiang Mai, Thailand in September 2012

Man cooking at a food cart in Istanbul, Turkey

Man cooking at a food cart in Istanbul, Turkey in January 2014

Man manning a food cart in Istanbul, Turkey

Man manning a food cart in Istanbul, Turkey in January 2014

Steam duck

A steam duck in a shop at Asiatique, in Bangkok, Thailand in September 2012

Steam pot

A pot emitting steam in a restaurant in Chiang Rai in December 2009