Category:Buildings and structures completed in the 20th century

• Airports established in the 20th century‎ (2 C)
• Commercial buildings completed in the 20th century‎ (2 C)
• Government buildings completed in the 20th century‎ (4 C)
• Houses completed in the 20th century‎ (1 C)
• Infrastructure completed in the 20th century‎ (4 C)
• 20th-century religious buildings and structures‎ (2 C)
• Residential buildings completed in the 20th century‎ (2 C)

1

• Buildings and structures completed in the 1900s‎ (1 C)
• Buildings and structures completed in the 1910s‎ (1 C)
• Buildings and structures completed in the 1920s‎ (2 C)
• Buildings and structures completed in the 1930s‎ (3 C)
• Buildings and structures completed in the 1950s‎ (4 C)
• Buildings and structures completed in the 1960s‎ (2 C)
• Buildings and structures completed in the 1970s‎ (2 C)
• Buildings and structures completed in the 1990s‎ (2 C)