Category:Infrastructure completed in 1780 Architecture portalEngineering portalThis category is for infrastructure completed in the year 1780.17751776177717781779178017811782178317841785 1730s1740s1750s1760s1770s1780s1790s1800s1810s1820s1830s Subcategories This category has only the following subcategory. T Transport infrastructure completed in 1780 (2 C)
