The paper analyzes the role and place of the defense architecture monuments—fortresses, castles, defense monasteries, and temples in the historical and architectural heritage of Ukraine—and identifies significant problems of restoration and involvement of castle complexes in modern life. The protection of monuments through their restoration and subsequent adaptation to modern needs, as a rule, concerns well-preserved Ukrainian castle complexes, while a considerable number of demolished castles are practically not restored and closed for inspection, destroyed physically and morally, thus remaining unknown to sightseers and tourists. The paper takes into account the experience of European countries that have long evaluated economic impact of the attendance of fortifications and palaces on the increasing demand in the tourism market of their own country. The paper determines the necessity to enlist and to structure all the monuments at the state level, i.e., to develop an effective mechanism for their inventory, control, reconstruction, and preservation. In addition, it is recommended to use European countries’ experience in providing concessions for cultural monuments and at the legislative level to simplify the granting of permits to different ministries and departments to issue such concessions. The financing of preserving historical and cultural complexes in Ukraine is substantiated, which should be:

• budget financing: from the State Budget of Ukraine, from local budgets;
• using extra budgetary funds: bank loans and payments for the use of natural tourist resources, travel businesses’ own funds, investors, local fees and charges, grants from international foundations and organizations, charitable contributions, and sponsorship.