A number of the oldest world capitals received as a heritage a historical center, which was formed over the centuries. However, the city authorities can not treat this part of the city exclusively as a collection of untouchable masterpieces, as they are forced to fill the dynamically developing megacities with new infrastructure, functions and activities. The cooperation of city administrations and local business in the field of heritage preservation can help preserve the unique image of the city and answer the challenges of modern megacities. ? How to protect the long-term interests of a city while maintaining its identity and architectural diversity? ? How to attract developers to mutually beneficial cooperation on the revitalisation of historical objects? ? How to take stock of the whole spectrum of heritage objects with the general involvement of city communities?