This general report presents and discusses papers dealing with the preservation of monuments and historic sites, as well as with some case studies related to problematic soils and to the design challenges they pose. The papers deal with a variety of issues and sometimes report different design approaches. They show that the themes discussed in this session are among the most challenging the geotechnical engineers and researchers have to face. In some cases, solutions have to be found taking into account the essential contributions of experts from different cultural fields.