There have been too many to list here. Here are some of the more notable tornadoes in the U.S.:
May 7, 1840: Natchez, Mississippi
May 27, 1896: St Louis, Missouri
May 10, 1905: Snyder, Oklahoma
March 23, 1913: Omaha, Nebraska
May 2, 1917: Peggs, Oklahoma
May 26, 1917: Mattoon, Illinois (and other towns)
June 28, 1924: Sandusky/Loraine, Ohio
March 18, 1925: Numerous towns in Missouri, Illinois, and Indiana
April 12, 1927: Rock Springs, Texas
May 9, 1927: Poplar Bluff, Missouri
April 5, 1936: Tupelo, Mississippi
April 6, 1936: Gainesville, Georgia
April 12, 1945: Antlers, Oklahoma
April 9, 1947: Woodward, Oklahoma
May 11, 1953: Waco, Texas
June 9, 1953: Worcester, Massachusetts
May 25, 1955: Udall, Kansas
May 20, 1957: Ruskin Heights, Missouri
April 11, 1965: Kokomo, Indiana
March 3, 1966: Jackson, Mississippi
June 8, 1966: Topeka, Kansas
May 11, 1970: Lubbock, Texas
April 3, 1974: Xenia, Ohio
April 3, 1974: Guin, Alabama
April 10, 1979: Wichita Falls, Texas
April 26, 1991: Andover, Kansas
May 27, 1997: Jarrell, Texas
May 3, 1999: Bridge Creek/Moore, Oklahoma
April 27, 2011: Hackleburg/Phil Campbell/Tanner, Alabama
April 27, 2011: Tuscaloosa/Birmingham, Alabama
May 22, 2011: Joplin, Missouri
May 20, 2013: Moore, Oklahoma
This list is by no means complete or comprehensive, and while all tornadoes on this list were highly destructive, selection was somewhat arbitrary.
Destructive..
The most destructive tornadoes are generally in the U.S. on the Great Plains and in the Deep South.
Yes. Illinois tornadoes are not uncommon in Illinois. The state has had a number of very destructive tornadoes. Most of the damage and deaths from the Tri-State tornado, the worst tornado in United States history, ocurred in Illinois.
Yes. Italy does get tornadoes including a few that were very destructive.
Yes, Germany does get tornadoes, a few of which have been quite destructive.
Tornadoes don't create anything. They are purely a destructive phenomenon.
TORNADOES
Both are natural disasters that are weather-related (at least most of the time in the case of floods). Both can be deadly and very destructive. Tornadoes and flash floods can happen suddenly and violently.
Tornadoes do not build anything (constructive) They destroy things (destructive)
No. Tornadoes can be very destructive, but they do not cause air pollution.
Tornadoes can be deadly and very destructive. It is quite reasonable to be afraid of them.
EF4 and EF5 are destructive with EF4 winds up to 166-200 and EF5 over 200mph destructive tornadoes like these can level houses and even completely blow them away.