ShiGral was a legendary city from Vulcan prehistory. It was supposedly founded by Surak prior to the Time of Awakening, and stood as an oasis of logic and peace during Vulcan's violent era. ShiGral was said to have been the only place where Surak's ideals were ever fully realized, and that, if Vulcan were to stray too far from his teachings, Surak would return to ShiGral.

By the 23rd century, ShiGral was widely considered to be a myth, and a majority of Vulcans did not believe in its existence. Despite this, a team from the Federation Archaeology Council was sent, circa 2293, to Vulcan to dig for the city on a site near the Llangon Mountains. This project was abandoned in 2293. (TOS short story: "The First Law of Metaphysics")

the planet Vulcan (Ni'Var)
cities and settlements	AraKahr • Chi-ree • Da'kum'Ulcha • Da-leb • In-Yar • Ishaya • Isk'Kahr • Jaleyl • Jia'anKahr • Keldeen • K'Lan-ne • Khir Ahl • Kir • Kren'than • Kwil'inor • Le'Tenya • Naweeth City • Nekhie • Remsusala • Rh'Iahr • ShanaiKahr • ShariKahr • ShiGral • ShiKahr • SriKahr • SuraKahr • T'lingShar • T'Paal • Ta'Vistar • Vulcana Regar • Vulcinis • Xen'tal • Zayus
landmarks and institutions	Ancients of Days • Diplomatic Institute • Fal-lan-tral • Fort Aba'kur • Hall of Ancient Thought • Hall of Debates • Hall of Voices • Kolinahru Monastery • Kul'Cha'Vir • Ku'Vel'Di • Kurat Temple Complex • M'dai sensor dish • Monastery of Ulann • The Oasis • Raal Provincial Hospital • Sarek School of Diplomacy and Ambassadorial Studies • Serenity Square • ShiKahr Academy • Shrine of S'vec • Shrine of T'Vet • Surak Memorial • T'ralor Preserve • T'Karath Sanctuary • T'sar Museum • Tav'Sal'Nava • Tinsha Monastery • Te'Rikh • Temple of Logic • Temple of T'Panit • Temple of Amonak • T'Klass's Pillar • V'Shull Institute • Va'ne'meLakht • Vulcan Academy of Archives • Vulcan Archives • Vulcan Institute of Defensive Arts • Vulcan Science Academy
nations and provinces	Enclave of the Faceless Ones • Gol • Khomi • Kel Province • Kir Province • Lyr T'aya • Raal • Shi'al • Tat'Sahr • Tekeh Province • Xial
geography	Al-Stakna Mountains • Caves of Kolinar • Caves of Kulvir • Cheleb-khor Desert • Go'an Desert • Fire Plains • Harari Desert • Kendha-Ya • Kurat Mountain Range • Llangon Mountains • Mount Kolinahr • Mount P-Ta • Mount Tarhana • Mountains of Gol (Mount Seleya • Surak's Peak) • Nal'shin Valley • Na'ree • Pelasht • Plains of Gol • Plateau of Tai-la • Shival Flats • Ta'Valsh • Te-Vikram caves • T'Kallaron caves • T'raan • T'regar • T'riall • T'ralor Preserve • Valley of Everlasting • Viltan Flats • Vulcan's Anvil • Vulcan's Forge (Gateway • Plain of Blood • Womb of Fire) • Vuldi Gorge
continents and landmasses	Han-shir • Na'nam • Xir'tan
bodies of water	Great T'Kala Sea • Lake Yuron • Straits of Ha'zen • Thanor Sea • Voroth Sea