The phrase 'is worth visiting' is correct and usable in written English. You can use this phrase to describe something that is interesting and worth seeing. For example, "The National Gallery in London is worth visiting for its extensive collection of art from all over the world.".
Still, plenty of people visit the area, because it is worth visiting.
It may take creativity, but Italy is worth visiting, not only for the tourists.
But every Strada village is worth visiting, even if its specialty is not for you.
It is worth visiting – it's like plugging yourself into the mains.
It was worth visiting just for the thrill of it.
Several private caves in the area are worth visiting.
These remain on view upstairs, and are worth visiting.
Being a terminologist, I care about word choice. Ludwig simply helps me pick the best words for any translation. Five stars!
Maria Pia Montoro
Terminologist and Q/A Analyst @ Translation Centre for the Bodies of the European Union