The Lockerbie Air disaster, Scotland. 21st Dec 1988 (Bomb placed in Pan Am flight 103 and exploded over town of Lockerbie in Scotland, UK, Everyone on Aircraft (mainly US citizens) died and 11 people died on ground by falling wreckage, exploding and leaving a huge crater).
Also, a suicide bomber driving a truck bomb exploded in a peacekeeping forces barracks in Beirut on 23rd Oct 1983, the truck barged through the camp gate and into the barracks armed with 12,000 lbs of TNT, 20 second later, the French paratrooper barracks was attacked by the same method. the death toll was 241 American servicemen: 220 Marines, 18 Navy personnel, and 3 Army soldiers. 60 Americans were injured. In the attack on the French barracks, 58 paratroopers were killed, and 15 injured. In addition, the elderly Lebanese custodian of the Marines' building was killed in the first blast; the wife and four children of a Lebanese janitor at the French building were also killed.
Also, countless numbers of attacks by the Irish Republican Army (IRA) and Provisional IRA (PIRA) Throughout the years in Northern Ireland and Mainland UK
Check out this link for more attacks:
http://en.wikipedia.org/wiki/Terrorist_attacks