The garden is right behind the house and has a view of the city of Lucca. It is just by the wall of the city, so you can see a few of the taller buildings stretching into the sky.
Many countries in Europe are dedicated to preserving original buildings and structures. This takes a lot of work in restoration and maintenance, but because of all the work, travelers can still go and take in the history and beauty of places that still look much the way they did centuries ago.
This house and garden serves as a type of musuem that travelers can go and visit. It costs a small fee to enter (five euro, or almost six U.S. dollars). This fee helps the museum officials maintain the garden. The house and gardens are owned by the Pfanner family. Dr. Pietro Pfanner was the mayor of Lucca in the 1920s.
I am not exactly sure how this garden is protected. It may be protected under the government since it is a museum, and it may also be protected by the Pfanner family since they own the property. When a house has historical significance, it often comes to be very valued throughout time and seen as a part of history and culture. It is very rare that such a place would then be destroyed.
I also walked through a garden in Paris called Luxemburg Garden. It was originally designed around the palace that Marie de Medici, the widow of Henry IV, had constructed. Today it is the home of the French Senate. The garden covers 57.5 acres and is known for its vast green lawns, an array of flowers, the Medici Fountain and model sailboats.