Octagon Building

• Andrew Gildersleeve Octagonal Building
• List of octagonal buildings and structures
• Morisco Kiosk
• Octagon Building (Santa Cruz, California)
• Octagon Centre
• Octagon Chapel (disambiguation)
• Octagon Hall
• Octagon Hotel
• Octagon House (disambiguation)
• Octagon Theatre
• Octagon barn (disambiguation)
• Octagon, Birmingham
• Octagonal Mausoleum
• Octagonal Schoolhouse (disambiguation)
• Octagonal churches in Norway
• Polytechnic University of the Philippines Santo Tomas
• The Octagon (Egypt)
• The Octagon (Heidelberg University)
• The Octagon (Roosevelt Island)
• The Octagon (disambiguation)
• The Octagon at Amherst College
• The Octagon, Christchurch
• UCL Main Building
• World Cotton Centennial