michelangelo dubbed them "the gates of paradise," which they are called today. though not yet famous as an architect, filippo brunelleschi won the competition to invent and build a dome to cover the 150-foot octagonal span of the florence cathedral. ♪ ave ♪ maria no one else had any idea how to do this. but brunelleschi's aptitude for precise calculation and his rampant imagination held the day. he would build an egg. he figured a way to use 8 arches, raised like ribs, that held a network of smaller ribs and connecting arches, forming an almost vertical pitch. ♪ ave ♪ maria thus, the risk-taking filippo brunelleschi became the first great architect of the italian renaissance. no visitor to florence can miss the mighty landmark that soars 308 feet into the air and tops one of europe's largest cathedrals. daring confidence was contagious in florence's art scene, and yet a visit to the bargello museum shows why the unpretentious sculptor donatello was central to the early renaissance. he was amazingly original. if realism was a renaissance battle cry, donatello, or

and let me take a moment to thank former supervisors sophie maxwell, evan dufty, and michelangelo alioto-pier for your -- michaela alioto-pier for your support and trust of me. i am grateful and inspired by that show of support. but more importantly, i was inspired by what it portends. a new era of trust. a shared sense of purpose and commitment to this city that we all love. a sense of unity. i may be your interim mayor, but i intend to utilize this year and office to tackle our problems with resolve and seriousness of purpose. this is an unprecedented opportunity and perhaps it is just what san francisco needs at this time and in our moment of history. ness an opportunity to come together -- this is an opportunity to come together, to roll up our sleeves and go to work on the significant challenges we all face. for the benefit of all san franciscans. i hope to move us past the labels that have pigeonholed us at city hall or at least to not be bound by them. because if you're a so-called moderate, then i'm a moderate. i've spent the past two decades trying to make this city work, to work for

and let me take a moment to thank former supervisors sophie maxwell, evan dufty, and michelangelo alioto-pier for your -- michaela alioto-pier for your support and trust of me. i am grateful and inspired by that show of support

and let me take a moment to thank former supervisors sophie maxwell, evan dufty, and michelangelo alioto-pier for your -- michaela alioto-pier for your support and trust of me. i am grateful and inspired by that show of support. but more importantly, i was inspired by what it portends. a new era of trust. a shared sense of purpose and commitment to this city that we all love. a sense of unity. i may be your interim mayor, but i intend to utilize this year and office to tackle our problems with resolve and seriousness of purpose. this is an unprecedented opportunity and perhaps it is just what san francisco needs at this time and in our moment of history.