Johanneskirken was a church in central Oslo, built on the city's oldest surviving square: Christiania Torv. It was built in 1875 and demolished in 1930. The church had issues with poor foundations since the beginning and was closed for safety reasons. The plot was used by a petrol station for much of the 20th century, but it was replaced with a post-modern business complex in 1996. The plot also contained a church in the period between 1639 to 1686, which at the time was the city's cathedral. The architect for Johanneskirken was Georg Bull.
The image above is an attempt to visualise how the church might look if it was still standing today.
For more information about historic Oslo, buy my book, Det Tapte Kristiania, here.