Aegidium is a stunning abandoned movie theater hidden in plain sight on a busy street in Brussels, Belgium. – Boredpanda

From the outside, you would not expect that there are multiple rooms with a total size of 3,260 m² located behind the small door. A mix of Art Nouveau and Art Deco elements is found throughout the building. However, the main room (movie theater) is designed in a beautiful Moorish style by architect Léon Denis.