Participants kiss during a Gay Pride parade on Copacabana beach in Rio de janeiro, Brazil. Reuters Archive. Photo by Sergio Moraes

Participants take part in a Pride Run, an event of the ShanghaiPRIDE LGBT (lesbian, gay, bisexual and transgendered) celebration in Shanghai, China. Reuters Archive. Photo by Aly Song

Members and supporters of the Lesbian, Gay, Bisexual and Transgender (LGBT) community take part in a gay pride parade in Managua, Nicaragua. Reuters Archive. Photo by Oswaldo Rivas

Participants kiss each other during a pride parade in Ljubljana, Slovenia. Reuters Archive. Photo by Srdjan Zivulovic

Transvestites prepare for a party the night before the Gay Pride Parade in San Pedro Sula, northwest Honduras. Photo by Edgard Garrido

Two men kiss during the 14th Gay Parade in Avenida Paulista in Sao Paulo, Brazil. Reuters Archive. Photo by Nacho Doce

A reveller poses for a photo during the Zurich Pride parade, Switzerland. Reuters Archive. Photo by Christian Hartmann

A man dressed in a panda costume sits covered by the gay pride flag during a protest against the violence towards the gay community in Tel Aviv, Israel. Reuters Archive. Photo by Baz Ratner

A participant of the the ‘Regenbogenparade’ (Rainbow Parade) kisses his friend in Vienna, Austria. Reuters Archive. Photo by Lisi Niesner

Two women waiting for a civil union kiss just before midnight when Colorado’s civil union law went into effect in Denver, USA. Reuters Archive. Photo by Rick Wilking

Revellers rest on the pavement during a gay pride parade in Mexico City, Mexico. Reuters Archive. Photo by Carlos Jasso

Pilar (L) and Nuevo Amanecer, both men who are dressed as traditional Zapotec also known as «Muxe», pose for a photograph inside a women’s bathroom during a traditional party in Mexico City, Mexico. Reuters Archive. Photo by Edgard Garrido

A man dances with another man (L) dressed as a traditional Zapotec, also known as «Muxe», during a traditional party in Mexico City, Mexico. Reuters Archive. Photo by Edgard Garrido