Vatican City

The largest part of the Vatican territory is occupied by the Vatican Gardens-about 23 hectares.

An excerpt from the article 21 facts about Vatican City

They are a garden and park complex surrounding the Vatican’s public buildings and residential buildings. They occupy the slope of Vatican Hill and are surrounded on three sides by fortified walls with bastions. On the east side, they are adjacent to the apse of St. Peter’s Basilica and the long wing of the Vatican Museums.

The Vatican Gardens were founded by Pope Nicholas III in 1279.