FORUM, in Roman antiquity, a public standing place within the city of Rome, where causes were judicially tried, and orations delivered to the people. Fig. 1. This diagram shows a cross-section of a fortification. On the left, a rampart is labeled 'Rampart'. A ditch is labeled 'Ditch'. On the right, a series of terraced walls are labeled 'Terraces', 'Rampart', 'Terraces', and 'Rampart'. The ground level is indicated by a horizontal line with various elevation markers. Profile of the Body of the Place and the Ravelin with Revetement This diagram shows a cross-section of a fortification with a different profile. It features a rampart, a ditch, and a series of terraced walls. The ground level is indicated by a horizontal line with various elevation markers. Profile of the Body of the Place and the Ravelin with demi-Revetement This diagram shows a cross-section of a fortification with a glass roof. It features a rampart, a ditch, and a series of terraced walls. The ground level is indicated by a horizontal line with various elevation markers. Fig. 2. This diagram shows a plan view of a star-shaped fortification. The star has multiple points and is surrounded by a series of concentric walls. The central area is empty. Fig. 3. This diagram shows a plan view of a star-shaped fortification. The star is labeled 'HUNNINGEN'. It is situated on a river labeled 'RHIN'. A bridge connects the fortification to the opposite bank. The fortification is surrounded by a series of concentric walls. The central area is empty. Architectural drawings showing the roof structure of a building. The top drawing is a plan view showing the layout of the roof sections. The middle drawing is a side elevation showing the profile of the roof. The bottom drawing is a cross-section showing the internal structure of the roof, including the rafters and the roof tiles. The drawings are rendered in a technical, line-art style. Architectural drawing of a circular structure, possibly a dome or a circular roof. The drawing shows a central emblem or crest within a circular frame. The structure appears to be a multi-tiered dome or a circular roof with a central opening. The drawing is rendered in a technical, line-art style. Architectural drawing of a circular structure, possibly a dome or a circular roof. The drawing shows a central emblem or crest within a circular frame. The structure appears to be a multi-tiered dome or a circular roof with a central opening. The drawing is rendered in a technical, line-art style.