Category:Infrastructure completed in the 1640s Architecture portalEngineering portalThis category is for infrastructure completed in the decade 1640s.1590s1600s1610s1620s1630s1640s1650s1660s1670s1680s1690s 12th13th14th15th16th17th18th19th20th21st22nd Subcategories This category has only the following subcategory. T Transport infrastructure completed in the 1640s (5 P)
