In 1967 the tower was designated a national monument.

The high cross has been designated a scheduled monument as a "good example of 11th century art styles".

The area around the bridge has been designated a national monument.

The fort was restored in the 1960s and designated a historical monument on October 19, 1965.

The site was designated a national monument in 1951.

It was designated a national monument by the United States in 1937.

After the war, the plain was designated a natural monument on 29th March 1952.

The tree was also designated a protected monument in 1979.

In 1967, the city was designated a national monument to preserve its colonial architecture.

It had been designated a historical monument in 1971.