Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
A new study has revealed the most captivating United Nations Educational, Scientific and Cultural Organisation (UNESCO) sites in the world according to eye-tracking technology, with Pontcysyllte Aqueduct and Canal in Wales topping the list.