Should a city perserve its historic buildings or replace them with modern ones

Should a city perserve its historic buildings or replace them with
modern ones?
Every culture has its special features. Buildings, as symbol of
architectural heritage, are an important part of the history of any
country or city. Moreover, they could help us find the answers of
many questions about the historical development of our society.
Therefore, I truly believe that every city-administration should try
to preserve the old, historic buildings.
All over the world many buildings are preserved in their
authentic appearances. Furthermore, many of them have
unique constructions and are really beautiful and
impressive. In my opinion, the destruction of such remarkable
pieces of architecture and their replacement with modern buildings
can be called ‘barbarity`. Nevertheless, a lot of old buildings
belonging to the historical heritage of the world are protected by
UNESCO.
It is a fact that cities, which have their old, historic buildings, are
favorite places for holiday and tourism. The reason is that these
cities keep their special atmosphere and could offer us a magnificent
journey through their cultural and architectural history.
The only reasonable argument to destroy some historic buildings
and replace them with modern ones, is when there is a risk of selfdestruction, which could endanger human lives.
In conclusion I would say that preserving old, historic buildings
could be considered as a sign of our respect and regard to the
previous generations. I am aware that it is an expensive initiative.
But who can evaluate the worth the historic buildings have, for those
who will come after us. And I would dare to ask ` who gives us the
right to destroy what the centuries have kept for us? And I would
answer `Nobody`!