There is a total of 21191 clues beginning with si
- Site of Kinabalu
- Site of Kineo and Katahdin
- Site of King David's palace
- Site of King David's royal residence
- Site of King Harald V's palace
- Site of King Louis XIV's palace
- Site of King Minos' palace
- Site of King Rudolf's imprisonment, in fiction
- Site of King Tut's tomb
- Site of King's 1965 protests
- Site of King's voter registration drive
- Site of Kit Carson's grave
- Site of Kit Carson's grave
- Site of Kit Carson's home
- Site of Kit Carson's house
- Site of knight-fights
- Site of knights' fights
- Site of Knossos
- Site of Ko'olau Range
- Site of Koko Head
- Site of Kon-Tiki Museum
- Site of Korean battle 1894
- Site of Krupp steel works
- Site of Krupp works
- Site of Krupp works
- Site of Kubla Khan's "pleasure dome"
- Site of Kubla Khan's garden
- Site of Kubla Khan's palace
- Site of Kubla Khan's pleasure dome
- Site of La Paz Bay
- Site of La Scala
- Site of la Torre Pendente
- Site of Lafayette College
- Site of Lafayette College
- Site of Lake Kyoga
- Site of Lake Washington
- Site of Lambeau Field
- Site of large English cathedral
- Site of largest rayon plant
- Site of last Four-Power Parley
- Site of Latakia
- Site of League of Nations, 1921–46
- Site of Leda's watery misadventure?
- Site of Lee's surrender
- Site of legend of William Tell
- Site of Leonardo's "The Last Supper"
- Site of Lewis-Clark State College
- Site of Lick Observatory
- Site of Lincoln's first political speech
- Site of Little America
- Site of Lod airport
- Site of London Stansted Airport
- Site of London's annual rowing race
- Site of London's Great Exhibition of 1851
- Site of London's Olympic Park
- Site of London, Cambridge and Windsor
- Site of longtime strife
- Site of Loring AFB
- Site of Los Angeles' Museum Row
- Site of lots of bucks
- Site of Louis XIV's palace
- Site of MacArthur's Korean War tour de force
- Site of Machu Picchu
- Site of Mackinac Island
- Site of Maine University
- Site of Maine's largest university
- Site of Manhattan Project work
- Site of many '60s tours
- Site of many '90s experiments
- Site of many 90's experiments
- Site of many a cat rescue
- Site of many a climber's goal
- Site of many a college party
- Site of many a firing
- Site of many a football injury
- Site of many a fountain
- Site of many a piercing
- Site of many a pin
- Site of many a protest
- Site of many a public fountain
- Site of many a Sargent
- Site of many a shady transaction
- Site of many a shipwreck
- Site of many a stand
- Site of many a student experiment
- Site of many a turnaround
- Site of many a werewolf attack
- Site of many a wet bar
- Site of many a yoga class
- Site of many addresses
- Site of many adieux
- Site of many an arrival
- Site of many an outdoor wedding
- Site of many Ansel Adams works
- Site of many arcades
- Site of many beauty contests
- Site of many beds
- Site of many changes
- Site of many checks
- Site of many Chicago touchdowns