Just 10 years ago, we were culturally a city of have-nots, with crusty institutions desperately trying to stay a step ahead of the next round of budget cuts. Consider these snapshots: A Museum of Fine Arts embroiled in controversy over curatorial firings; an Institute of Contemporary Art barely able to draw 20,000 people a year to its cramped Back Bay space; no Opera House, Calderwood Pavilion or -- brace yourself -- Guitar Hero. Certainly, not everything has been rosy in the last decade. We’ve watched crushing deficits and general inactivity damage the Citi Performing Arts Center (formerly the Wang Center for the Performing Arts). Museums, theater companies, and even the mighty Boston Symphony Orchestra have had to make cuts. But the real story of the '00s has been a cultural building boom that’s brought nothing short of an arts revolution to Boston. Here are the 10 biggest developments: