My kid asked vietnamese friend about what is his favourite place of interest in Vietnam and he said "chin-tu". Forgot to ask what is it :) Now googling and can't find anything like this! Found that "chin" may be mean "nine" I found "Nine Holy Cannons", but the name of this object looks different in vietnamese.
Any ideas what it could be?
Friend said, it was A HOLIDAY.
Can you hint what holiday it can be?