Organization of exhibitions for cultural or educational purposes; arranging and conducting of colloquiums in the field of urban planning and development, city planning, real estate planning and development; arranging and conducting of educational conferences in the field of urban planning and development, city planning, and real estate planning and development; arranging and conducting of educational congresses in the field of urban planning and development, city planning, and real estate planning and development; arranging and conducting of symposia in the field of urban planning and development, city planning, real estate planning and development; arranging and conducting of workshops in the field of urban planning and development, city planning, real estate planning and development; organization of exhibitions for cultural purposes; organization of exhibitions for educational purposes