Some buildings shine during the day and others at night, this been a case of the latter and if by shine you mean turning various shades of photonic goodness, the likes of which you will only see coming out of a LEE Filters Saturates pack [link].
The aptly named bubble bridge passing over Little Lonsdale St linking the two blocks of the Melbourne Central Shopping Centre complex together was designed by ARM Architecture [link], as part of the refurbishment of the retail complex that started in 2003. The bridge was completed in 2005.