Have you ever come across colonial edifice and thought about when they were built. These structures date back to the colonial eras and they were massive.
Below are colonial buildings/structures in nigeria and the times they were built.
Christ Church Cathedral, Lagos

The Cathedral Church of Christ Marina, Lagos is an Anglican cathedral on Lagos Island, Lagos.The foundation stone for the first cathedral building was laid on 29 March 1867 and the cathedral was established in 1869.
Jaekel House, Lagos

Located inside the Ebute-Metta premises of the Nigeria Railway Corporation, Jaekel House is a restored colonial mansion. It now serves as a railway museum and photo gallery of the NRC’s colonial era.
Lagos Colonial Secretariat, Lagos

The Old Secretariat was completed in 1895. It was built in the English architectural style along with a two-twin tower which serves as a guard-front for security. It is by far the most imposing colonial building in Lagos.
Kajuru Castle, Kaduna

While the other buildings on this list are very old, Kajuru Castle is not, since It was built by an unnamed German expatriate in 1978.
Centenary Hall Abeokuta

The Egbaland centenary hall was built by the settlers to monumentalize their one hundred years story of peaceful existence at Abeokuta after the inter-tribal wars. It was constructed in 1950.
Hope Waddell Training Institution in Calabar
This building dates back to 1895.

founded by missionaries from the United Presbyterian Church of Scotland in 1895. It is named after the Reverend Hope Masterton Waddell.
St. George’s Hall, Lagos.

located on Broad Street was constructed in 1907. It houses St. George’s Lodge No. 3065 of the global Freemason Order.
The first European storey building in Nigeria.

This famous white one-storey building in Badagry was constructed by the Rev. Henry Townsend of the Anglican Church Mission Society (CMS) in 1845. Located on the Badagry Marina.
Mapo Hall, Ibadan

It may not look like it, but this too is one of the oldest buildings in Nigeria. Built in 1929, Mapo Hall has witnessed 87 years of Nigerian history from its vantage point at Mapo Hill summit, the highest point in the city of Ibadan.
Kings College, Lagos.

Kings College, built in 1909 by the British colonial administration in Lagos. Built at the cost of £10,001 and is one of the oldest buildings in Nigeria.
Oba of Benin Royal Palace, Benin.

Visitors to the Oba’s palace are forbidden from taking pictures. Because of this, it is notoriously difficult to get a picture of this historic building.Built by Oba Ewedo (1255AD–1280AD) as the symbol of the mighty Bini Empire for 6 centuries.
Lugard Hall, Kaduna.

Lugard Hall, the seat of the Kaduna State House of Assembly was built in 1914. Therefore, it is 103 years old. Named after Frederick Lugard and originally served as the seat of legislative power of the Northern Protectorate.