Author blog of William A. Young; journeys through the mythology of the northern fringes of Europe
This section is a collection of links to various free mapping services I’ve made use of over the years. They’re invaluable for forward-planning trips, and all very reliable.
United Kingdom (ignore request to sign up, select ‘Leisure’ option to view topographical detail)
Antiquities & Archaeology
The best mapping tool I know of is the Google Earth plug-in available on the Modern antiquarian website run by Julian Cope. It lets you filter by site type, and, while centred on the archipelago of the British Isles, it does also include sites from round the world.