Lagos (/ˈleɪɡɒs/ LAY-gos) is a port city and the most populous city in Nigeria. Officially, the population of Lagos was last recorded at 7,937,932. Lagos is the second fastest growing city in Africa and the 7th fastest in the world. Lagos was originally inhabited by the Awori subgroup of the Yoruba people. Under the leadership of their Olofin, the Awori moved to an island now called Iddo and then to the larger Lagos Island. In the 15th century, the Awori settlement was attacked by the Benin Empire following a quarrel, and the island became a Benin war-camp called "Eko" under Oba Orhogba, the Oba of Benin at the time.

Lagos is a huge metropolis which originated on islands separated by creeks, such as Lagos Island, fringing the southwest mouth of Lagos Lagoon whilst protected from the Atlantic Ocean by long sand spits such as Bar Beach, which stretch up to 100 km east and west of the mouth. From the beginning, Lagos has expanded on the mainland west of the lagoon and the conurbation, including Ikeja and Agege, now reaches more than 40 km north-west of Lagos Island. Some suburbs include Ikorodu, Epe and Badagry, and more local councils have recently been created, bringing the total number of local governments in Lagos to 57.

Nigeria ⁱ/naɪˈdʒɪəriə/, officially the Federal Republic of Nigeria, is a federal constitutional republic comprising 36 states and its Federal Capital Territory, Abuja. The country is located in West Africa and shares land borders with the Republic of Benin in the west, Chad and Cameroon in the east, and Niger in the north. Its coast in the south lies on the Gulf of Guinea on the Atlantic Ocean. The three largest and most influential ethnic groups in Nigeria are the Hausa, Igbo and Yoruba.

In terms of religion Nigeria is roughly split half and half between Muslims in the North and Christians in the South; a very small minority practice traditional religion. Since 2002 there have been a spate of clashes, particularly in the North of the country, between government forces and the Islamists Boko Haram, militant jihadists who seek to establish sharia law.

The people of Nigeria have an extensive history. Archaeological evidence shows that human habitation of the area dates back to at least 9000 BCE. The area around the Benue and Cross River is thought to be the original homeland of the Bantu migrants who spread across most of central and southern Africa in waves between the 1st millennium BC and the 2nd millennium.

A guide book is a book for tourists or travelers that provides details about a geographic location, tourist destination, or itinerary. It is the written equivalent of a tour guide. Many travel guides now take the form of travel websites rather than printed books.

It will usually include details such as phone numbers, addresses, prices and reviews of hotels and other lodgings, restaurants, and activities. Maps of varying detail are often included. Sometimes historical and cultural information is also provided. Different guide books may focus on different aspects of travel, from adventure travel to relaxation, or be aimed at travelers with larger or smaller travel budgets, or focus on the particular interests and concerns of certain groups such as sexual orientation or dietary restrictions. Guide books are generally intended to be used in conjunction with actual travel, although simply enjoying a guide book with little or no intention of visiting may be referred to as "armchair tourism".

The periplus was an itinerary from landmark to landmark of the ports along a coast, a forerunner of the guide. A periplus such as the Periplus of the Erythraean Sea was a manuscript document that listed, in order, the ports and coastal landmarks, with approximate intervening distances, that the captain of a vessel could expect to find along a shore. It served the same purpose as the later Roman itinerarium of road stops.