Both the Country Profiles and the National Reports presents in general terms the main information concerning cultural heritage but cannot address in detail the specific thematic domains composing that cultural heritage.

Historic gardens has been one of the issues addressed through a participative survey that has emerged as particularly rich, motivating its subsequent development within a specific thematic page.

Participative surveys are a tool strengthening the HEREIN general information by collecting more easily thematic or specific information among National Coordinators.