Category:Infrastructure completed in the 21st century 16th17th18th19th20th21st22nd23rd24th25th26th Subcategories This category has the following 7 subcategories, out of 7 total. 0–9 Infrastructure completed in the 2000s (12 C) Infrastructure completed in the 2010s (12 C) Infrastructure completed in the 2020s (8 C)D Dams completed in the 21st century (3 C, 1 P)E Energy infrastructure completed in the 21st century (24 C)T Transport infrastructure completed in the 21st century (8 C)W Windmills completed in the 21st century (11 C)
