Scotland: Edinburgh Festival, a huge range of arts, esp. drama, from the sublime to the ridiculous – a monster art attack in a great, grey city. Not to be missed. Most of Aug.
England: London, Notting Hill Carnival, late August, 2 days.
Italy: The Palio of Siena (medieval, bareback horse race) about 2nd July and 16th August.
Spain: La Tomatina, messy tomato fights in which you can participate, Bunol, Valencia, end of August.
Malaga, Feria de Malaga – the biggest party in town with fancy dress, exotic food and dance, and fireworks. One week mid August.
France: Festival d’Avignon (theatre) mid July-mid August.
Chaumont Garden Festival – thirty wonderful and sometimes wacky show gardens around a perfect chateau (castle), every year 15 May-19 October.
Germany: Wagner Festival, Bayreuth (very expensive and elitist) Late July-late August.
Berlin International Dance – a wide range of innovative, international dances. Mid August-early Sept.
Ireland: All Ireland Fleadh Ceoil (Irish music & dance festival)moving venue, seven days late Aug.
Rose of Tralee Festival (wacky beauty contest++), Tralee, 3 days, 3rd week of August.
Puck Fair in Killorglin, County Kerry. A large and loony street fair with plenty of singing, dancing and horse shows, and all overseen by King Puck – a goat. 2 days.
Poland: Music in Old Krakow Festival, Krakow.
Hungary: Nagykallo, Folk Arts Festival.
Austria: The Salzburg International Festival (music), late July and August. ‘Europe’s most prestigious summer musical event. ‘ Very large, very expensive. Every year in Mozart’s pretty home town.
Greece: Athens Festival, drama and music in ancient theatres. June-Sept.
Denmark: Copenhagen Summer Festival, chamber and classical music, July-mid Aug.
Tonder festival (folk music), end of August.
Also see European Festivals or Arts Festivals for suggestions, information and dates.