Misc: pantelleria, ustica and lampedusa are all islands belonging to which country?

Questions

in which french island territory would you find the towns bastia and calvi?

which london landmark is now the depository of the royal coronation regalia?

which vatican building was built for pope sixtus lv?

the church of santa maria delle grazie is a world heritage site, in which italian city would you find it?

which british town is famous for its cutlery production?