The Site was inscribed on the World Heritage List as a Site of
“outstanding universal value” in 1987 during the 11th session of
the UNESCO World Heritage Committee, based of the following
cultural criteria:
CRITERION I
to represent a masterpiece of human creative genius.
CRITERION II
to exhibit an important interchange of human values, over a span
of time or within a cultural area of the world, on developments in
architecture or technology, monumental arts, town-planning and
landscape design.
CRITERION III
to bear a unique or exceptional testimony to a cultural tradition or
to a civilization which is living or which has disappeared.
CRITERION IV
to be an outstanding example of a type of building, architectural
or technological compound or landscape, which describes one or
more significant stages in human history.
CRITERION V
to bear an outstanding example of a traditional human settlement,
use of land or marine resources, which is representative of a
culture (or cultures) or of human interaction with the environment,
especially when it has become vulnerable under the impact of
irreversible changes.
CRITERION VI
to be directly or tangibly associated with events or living traditions,
with ideas or beliefs, with artistic or literary works, of outstanding
universal significance.
For an asset to be considered of exceptional universal value, it
must also meet the conditions of integrity and authenticity and
must be equipped with an adequate protection and management
system to guarantee its protection