Marvels (7)
I believe the answer is:
wonders
'marvels' is the definition.
('wonder' can be a synonym of 'marvel')
This is all the clue.
(Other definitions for wonders that I've seen before include "Questions, marvels" , "Questons, marvels" , "Prodigies, miracles" , "Curiosities" , "Marvels - there used to be seven of them in the world" .)