EAC provides a database and publishes reports and advice for organisers of expeditions. UK mirror site. Information on forecasting research and development and educational resources. Maps of Great Britain at various scales, searchable by placename, postcode, London streetname, telephone area code, OS grid reference. Online booking available.
Site also includes flags of all nations.
Plus all rail, ferry and coach travel between the UK and mainland Europe. This is THE definitive index to timetables, fares, ticket-types, passenger facilities and lots more. If it's not here, it's not on the web. From Xenon Laboratories.