The most prominent characteristic of Korean gardens is that they are located in places where it is possible to see and enjoy the natural surroundings Therefore gardens are usually found on sloped areas, and the fences are built low. The inside of the garden is made with consideration of the surrounding nature and thus aims to "fill in the margin" in a connection to the outside nature. In other words, the surrounding natural landscape is brought to the inside of the garden. This characteristic of Korean gardens, which is especially true in the cases of backyard gardens, originates from the idea of trying to leave nature as it is One additional characteristic of Korean gardens is the naming of natural objects found within. These names help to give meaning to the objects. The abstract names are important pieces of information that allow a visitor to gain an appreciation of the depth of the garden owner's thoughts and feelings toward the garden when it was constructed. The before-mentioned "Secret Garden" at the rear of Changdeokgung Palace has these characteristics.