The Federation Embassy on Qo'noS is the permanent diplomatic mission of the United Federation of Planets in the Klingon Empire. The Federation Embassy is a large - over two hundred meters tall - rust-colored structure located in the First City; shaped like an inverted pyramid with the corners supported by high columns, it is the formal workplace of the Federation Ambassador to the Klingon Empire, and is considered to be legally Federation soil. (DS9 novel: The Left Hand of Destiny)

The Embassy is surrounded by a ten meter high fence and force field designed to protect the structure from most conventional attacks. In order to gain entrance to the embassy, an eight digit code, retinal scan, and verbal authentication is required. It also maintains constant contact with Federation space through subspace radio, and has the capacity to launch a cloaked probe into orbit in times of emergency to send distress beacons. It is also equipped with standard anesthizine gas defenses such as those found on Federation starships. Nonetheless, the Federation Embassy on Qo'noS has suffered a number of notable security lapses in recent years. In 2376, the Embassy was seized and its personnel placed under the mental control of Morjod, Son of Martok, as part of his unsuccessful coup attempt, and in 2379, a small band of radicals managed to temporarily storm the Embassy and take its staff hostage until Ambassador Worf personally fought them for control of the building. (DS9 novel: The Left Hand of Destiny; TNG novel: A Time for War, A Time for Peace)

In the basement of the Federation Embassy is located the classified operations center of Starfleet Intelligence. In a sub-basement below that was an operations center of the rogue organization known as Section 31. Imperial Intelligence agent Lorgh became aware of this operations center, and made its presence known to Worf, then the Federation Ambassador, in 2379. Worf was able to take the turbolift to this lowest level, stun the guard, and enter to speak with Commander Zietzev. Twelve hours after Worf made his unauthorized entrance, the entire subbasement level was cleared of all equipment, leaving behind no trace of its existence or purpose. (TNG novel: A Time to Kill)

Sinnravian musicians performed at a function at the Embassy sometime prior to late 2376. (KE novel: A Burning House)

the planet Qo'noS
cities and settlements	An'quat • D'Takka • Emperor Kahless Military City • First City (Old Quarter) • Khal • Khinah • Kopf's Cliff • Krennla (Baldi'maj District • Kenta District) • Kri'stak City • M'riiah • Navarath • NarOs • Novat • Qam-Chee • Qa'yarin • Quin'lat • Saqwa' • Serra'nob • Szlar'it • T'chariv • Tisur • Tolar'tu • Tong Vey • Ya'Koraq
landmarks and institutions	Combat Testing Center • Du'Hurgh • Federation Embassy on Qo'noS • Flame Cliffs of Kutabi • Goqlath Castle • Great Domes of Qo'noS • Great Hall • Hall of Heroes • Hall of Honor • Kilgore Landing Bay • Klingon Defense Force Command Headquarters • Lukara Edifice • Museum of Military Triumph and Conquest • Palace of Kahless • Place of Honor • Tactical College • Taklar Temple • Temple of Molgar • Temple of Rogax • TengchaH Jav • Three Turn Bridge • TlhIng Veng laboratory • Vulcan Cuisine
nations and provinces	Ketha • Khlaru • Mekro'vak
geography	Almron Preserve • BIng'av Mountains • Caves of Kahless • Caves of No'Mat • Chak'ok • Cybriss Valley • DuHoH Desert • Fesh'rin Hills • Kutabi • Gharhuil • Hamar Mountains • HatlhHurgh • Jungles of Kintak • Kang's Summit • Kannaga Mountains • Karak Summit • Kartade Forest • Ka'Toth plains • Ketha Lowlands • Kol'Vat • Kri'stak volcano • Mount Batlhqui • Mount Vor • Nagh Be'nImey • Ona'ja'bur • Qimpo • Qo'dung Mountains • Qora Forest • Qualnagh Mountains • Shrana • Sutor Mountains • S'zlach • Tiv'ranisch • Tl'Gekh • TlhIngtuj Mountains • Tor'aq • Uhq'ra' Mountains
bodies of water	BIQ'a'bIng Ocean • BIQ'a'dung Ocean • Chu'paq Sea • Sea of Gatan • HoSghaj River • Lake Lursor • Lake Lusor • NIHbIQ'a' Ocean • PoSbIQ'a' Ocean • Qam-Chee River • Skral River