Europe

EuroCompass - "Guide for the Independent Traveller"
Europe for Visitors - Guides for most destinations. Includes a section on Jewish travel in Europe
European Reading Room (Library of Congress)

European Union
EuroDocs - Primary historical documents from Western Europe
Via Michelin - Guide to traveling in Europe
Western European Studies Section, Association of College and Research Libraries - Gateway to links on all aspects of Western European society and culture

Britain

United Kingdom: Selected Internet Resources (Portals to the World, Library of Congress)
24 Hour Museum - Gateway to 3,000 museums, galleries, and heritage attractions
English Studies - Hundreds of links (Intute)
Icons - Stonehenge, a cup of tea, Monty Python, and other things that make England what it is today
National Attractions - Museums, galleries and historic houses in England, Ireland, Scotland, Wales
University College London's UK Page
UKdirectory
British Page - Cultural links
See also British Politics and Government, British Literature, and British Beer

American and British History Resources - Including many texts
Ansaxdat - The database of Ansax-L, the Anglo-Saxon mailing list
CAIN: Conflict Archive on the Internet - Extensive background on "the troubles" in Northern Ireland
English History.net - So far, pages on Byron, Keats, and Tudor history

Part of the University of London's School of Advanced Study

British History Online - Specializes in local history from the medieval and early modern periods (Institute of Historial Research)
London's Past Online - "A bibliography of London history"
Royal Historical Society Bibliography - Covers British and Irish history

Universities and Colleges (HERO)
Universities and HE Colleges - All on a clickable map (University of Wolverhampton)
See also British and Irish Libraries

Ireland: Selected Internet Resources (Portals to the World, Library of Congress)