There is a total of 21191 clues beginning with si
- Site of grounding during a storm
- Site of Guantánamo Bay
- Site of Guinevere's court
- Site of Hadrian's Villa
- Site of Haleakala
- Site of Haleakala National Park
- Site of half of Lake Victoria
- Site of Hank Aaron's 715th home run
- Site of Hannibal's defeat
- Site of Hannibal's defeat: 202 BC
- Site of Hans Brinker's heroism
- Site of Harald V's royal palace
- Site of Hardin-Simmons Univ
- Site of Harford Comm College
- Site of Harrah's Gulf Coast casino
- Site of Hawaii's Banzai Pipeline
- Site of Hawaii's Barbers Point
- Site of heavy traffic, with "the"
- Site of Hejaz and Nejd
- Site of Hell's Canyon
- Site of Hellroarin' Gulch
- Site of Hells Canyon
- Site of Hephaestus's forge
- Site of Hephaestus's workshop
- Site of Hercules first labor
- Site of Hercules' death
- Site of Hercules' first labor
- Site of Hercules' first labor
- Site of Hercules' lion-related labor
- Site of Hercules's first labor
- Site of heroic stand, 1836
- Site of Hewitt Quad
- Site of Hickam Air Force Base
- Site of Hideyoshi's castle
- Site of high rollers
- Site of higher educ
- Site of Hill AFB
- Site of Hindu ruins: Var
- Site of historic 1965 marches
- Site of historic event, Sept 2, 1945
- Site of Honolulu
- Site of Horse Mesa Dam
- Site of Horseshoe Falls
- Site of Houston's decisive victory
- Site of huge active crater
- Site of Humboldt State College, California
- Site of Ica and Cuzco
- Site of Ike's museum
- Site of Ikea's hdqrs
- Site of il Colosseo
- Site of Iloilo
- Site of important discovery in Nile delta, 1799
- Site of Inca ruins
- Site of India's Jama Masjid
- Site of India's Pearl Mosque
- Site of India's Red Fort
- Site of indoor drilling
- Site of infamous tribunals
- Site of informal ball games
- Site of iniquity
- Site of iniquity in antiquity
- Site of iniquity?
- Site of inkor oink
- Site of insincere sermons?
- Site of interest to Margaret Mead
- Site of Interpol's headquarters
- Site of Interstate H1
- Site of Iolani Palace
- Site of Iowa State
- Site of Iowa State campus
- Site of Iowa State College
- Site of Iowa State U
- Site of Iowa State University
- Site of Iowa State
- Site of Irish coronation stone
- Site of Israel's Timna Park
- Site of Italian university
- Site of Italy's Blue Grotto
- Site of Italy's D-Day
- Site of Italy's Festival of Festivals, featuring local food and wine
- Site of Italy's largest opera house
- Site of Jack and Jill's fall
- Site of Jack and Jill's spill
- Site of James Dole's pineapple plantation
- Site of Jap naval base
- Site of Japanese trading: Abbr
- Site of Jerusalem
- Site of Jesus' crucifixion
- Site of Jesus' first miracle
- Site of Jesus's first miracle
- Site of Jews' last stand against Romans: AD 72–73
- Site of Jim Hogg County
- Site of Joan of Arc's demise
- Site of Joan of Arc's trial
- Site of John Brown's rebellion
- Site of July 1944 fighting
- Site of Katmandu
- Site of Keesler AFB
- Site of Kerr-McGee's hdqrs
- Site of Killarney