There are two ways to create a landmark, it depends on the landscape. If you are in an open site, a landmark can appear with a positive form and clear outline, like a rock. But if you are in a forest with all its trees, this doesn’t work. You have to create a clearing and allow the sunlight in. The light in the forest doesn’t have a clear outline. This is a very different way to create an icon.
— Ryue Nishizawa, architect of The Sydney Modern Project
In these photos above, you see two Sydney landmarks. The Sydney Opera House (1959) stands proud from the expanse of water around it, is sculpted with a clear form like the rock Nishizawa mentions.
The new Sydney Modern Art Gallery (2022) is seen in this photo from the inside. Because, from the outside there is nothing much to see. It creates a landmark in a different way because it is about "creating a clearing and allowing the sunlight in".