25. St. Sava Temple, Serbia

via Shutterstock

via Shutterstock

St. Sava Temple is a Serbian Orthodox church that ranks among the largest church buildings in the world. Dedicated to Saint Sava, the founder of the religion and important medieval Serbian figure, it dominates the Belgrade’s cityscape.

The building was planned in the late 1800’s but it took 40 years for construction to begin on May 10th, 1935. This is 340 year after the burning of the remains of Saint Sava. During WWII the construction was halted and the Germans used the site as a parking lot. It was in 1985 that construction restarted. The biggest feat was the lifting of a 4,000 ton central dome which sits atop the church. While it is mostly complete, there is still much work to be done on the interior and the building is considered to be still in progress.