David Rumsey Map Collection
One of the largest online collections of historical maps, free to explore
OpenHistoricalMap: an OpenStreetMap for history: map the world as it was at any date. Here are 29 other maps that do a similar job, 25 of them completely free.
One of the largest online collections of historical maps, free to explore
Search engine for historical maps held by libraries worldwide
Historical maps of Scotland, Britain and the world, including side-by-side viewers
Tens of thousands of digitised maps from the US national library
Switzerland's federal map viewer with the famous Swiss topographic maps
France's official map portal: IGN maps, aerial photos, cadastre and history
Every historical USGS topographic map, free to view and download
Compare old Japanese topographic maps with today, side by side
Interactive map of Britain's railways, past and present
Open-source tools for georeferencing and viewing digitised old maps
Aerial photographs of Britain from 1919 to 1953
Historical maps of Boston, New England and the world, with exhibitions
One of the largest online collections of historical maps, free to explore
Search engine for historical maps held by libraries worldwide
Historical maps of Scotland, Britain and the world, including side-by-side viewers
Tens of thousands of digitised maps from the US national library
Switzerland's federal map viewer with the famous Swiss topographic maps
France's official map portal: IGN maps, aerial photos, cadastre and history
Every historical USGS topographic map, free to view and download
Historical aerial photos and topographic maps of the United States
Historical maps of the Habsburg Empire and Europe, georeferenced
Compare old Japanese topographic maps with today, side by side
Interactive map of Britain's railways, past and present
Open-source tools for georeferencing and viewing digitised old maps
Aerial photographs of Britain from 1919 to 1953
Historical maps of Boston, New England and the world, with exhibitions
Historical maps of New York and beyond, aligned to the modern map by volunteers
Historical Ordnance Survey maps of Great Britain by address
Huge catalogue of antique maps with detailed descriptions
Old maps of Russian and other cities aligned with modern maps
Interactive world history atlas from 3000 BC to today
Map of Indigenous territories, languages and treaties worldwide
A history map linking 4,000 years of borders to Wikipedia
Stanford's geospatial model of travel across the Roman Empire
Every UNESCO World Heritage Site on one map
The 1930s redlining maps of American cities, digitised
Guess where and when a historical photo was taken
Digital Atlas of Roman and Medieval Civilizations from Harvard
A detailed world history map you can zoom through time and space
Data and maps of the transatlantic and intra-American slave trades
A detailed map of the Roman Empire's places and roads