rather than democracy, talk about democric developments in certain areas. >> all right, nina khrushcheva, thank you very mh. >> thank you. >>> and now to our "signature segment," part two of oureries we call "preserving history." in moscow they maye debating what qualifies as hisry,ut in rom they are debating how much history may be too much. rome, of course, is a city defined by its antiquities. places like the coliseum and the forum. but world focus secial coespondent martin seemungal reports th the cost of maintaining it all h some romans worried i could end up breaking the bank. >> reporter: from one of t seven hills ofome, it's easy to see why it's called the eternal city. in the distance runs of ancient buildis, of paces of th caesars yum. and just around the bend in the tiber river st. peter's a billick ka. then there's thepantheon with its spectacular opulence. everywhere medieval chches and renaissanceuildings mix with modern architectu. the central part of rome today is oneig seum. it attracts millions of tourists a year. but the cost of preserving all this is astronomical. and