The Opera House eventually lit up, at an estimated cost of £50,000, and showed on its iconic roof a series of pictures of the King and Queen during their previous visits Down Under.

Carmina Villarroel and Zoren Legaspi’s family made a picture-perfect stop at one of Australia’s most iconic landmarks, the Sydney Opera House. On Instagram, Mavy posted photos from their visit ...

Prospective couples chat at the Sydney Opera House event. (ABC News: Mandie Sami) "I'm going to meet my wife, and I'm going to get in the Guinness Book of Records," one male participant said.