Yes, but what independent country doesn't? All countries have their secrets.
The Vatican Necropolis holds secrets such as ancient tombs, burial chambers, and artifacts dating back to Roman times. It is believed to be the final resting place of early Christian martyrs and popes, with some tombs containing inscriptions and symbols that reveal hidden meanings and historical significance.
There is no Vatican Island. However, the Vatican is an 'island' in the middle of the city of Rome.
Vatican Council I was the first Ecumenical Council to be held at the Vatican in Vatican City which is an independent country.
Vatican City is the capital of Vatican City the country.
There are no hotels for tourists in Vatican City. Visitors to the Vatican usually stay in hotels in Rome which surrounds the Vatican.
No, the Vatican is in Italy, Europe.
Vatican City
el Vatican
The Vatican has no industry or agriculture.
In Vatican City, thus the name Vatican Council II.
There is no admission to the Vatican but there are admission fees charged for some museums in the Vatican.