Campo de' Fiori
The "Field of Flowers" is the rare central square in Rome with no church on it — and that absence carries a memory. In its centre broods a hooded bronze statue of Giordano Bruno, the philosopher and former friar burned alive here for heresy on 17 February 1600 for, among other things, insisting the universe was infinite and full of other worlds. The statue, raised by anticlerical activists in 1889, deliberately faces the Vatican.