Love locks at the Kurrajong Gap Lookout, Bethanga, Victoria

Love locks at the Kurrajong Gap Lookout, Bethanga, Victoria in October 2018

Choose Love vote yes poster for the same sex marriage referendum seen in Haymarket, Sydney

Choose Love vote yes poster for the same sex marriage referendum seen in Haymarket, Sydney in September 2017

Thai person with a t-shirt of a woman saying Love seen on the street in Bangkok, Thailand

Thai person with a t-shirt of a woman saying Love seen on the street in Bangkok, Thailand in September 2017

Chinese tourists in Phuket, Thailand. The man's t-shirt reads Peace, Love and the beautiful game with a football at the end

Chinese tourists in Phuket, Thailand in August 2017. The man's t-shirt reads Peace, Love and the beautiful game with a football at the end

Haight Ashbury salon sign in Wellington, New Zealand. Love is in the hair

Haight Ashbury salon sign in Wellington, New Zealand in January 2017. Love is in the hair

Love Box letter box in Canberra in September 2016

Love Box letter box in Canberra in September 2016

I love your buns sticker in Parkhurst, Johannesburg, South Africa. #thedogsbollocks@yard

I love your buns sticker in Parkhurst, Johannesburg, South Africa in February 2015 #thedogsbollocks@yard

Racy t-shirt of two lovers in Chinatown, Bangkok, Thailand

Racy t-shirt of two lovers in Chinatown, Bangkok, Thailand, in December 2009

Love padlocks on the Charles Bridge, on the Vltava River, Prague, Czech Republic

Love padlocks on the Charles Bridge, on the Vltava River, Prague, Czech Republic in February 2014

Love locks on the Charles Bridge over the Vltava River in Prague, Czech Republic

Love locks on the Charles Bridge over the Vltava River in Prague, Czech Republic in February 2014

A Renault car covered in snow with the word love written on the back windscreen in Budapest, Hungary

A Renault car covered in snow with the word love written on the back windscreen in Budapest, Hungary in January 2014

Love symbol in the snow in Budapest, Hungary

Love symbol in the snow in Budapest, Hungary, in January 2014

Romantic books for sale in the Mall, Khorat, Thailand

Romantic books for sale in the Mall, Khorat, Thailand in June 2016

I love Thai number plate outside the Jinda Thai restaurant and the Talad Thai grocery store in Abbotsford, Melbourne, Victoria

I love Thai number plate outside the Jinda Thai restaurant and the Talad Thai grocery store in Abbotsford, Melbourne, Victoria in November 2016

A young couple at Hyams Beach, NSW

A young couple at Hyams Beach, NSW in September 2013

Love in the National Gallery of Australia in Canberra

Love in the National Gallery of Australia in Canberra in March 2016

FH loves JH sign in the sand at the beach at Tathra, NSW

FH loves JH sign in the sand at the beach at Tathra, NSW in October 2014

FH Loves JH sign in the frost in Potsdam, Germany

FH Loves JH sign in the frost in Potsdam, Germany in February 2014

Bar and food last love Katsumi sign in Kyoto, Japan

Bar and food last love Katsumi sign in Kyoto, Japan in March 2015

Love in the air t-shirt at a shop at the Mall shopping centre in Korat (Nakhon Ratchasima) in Thailand

Love in the air t-shirt at a shop at the Mall shopping centre in Korat (Nakhon Ratchasima) in Thailand in February 2014