From The Art Newspaper: Newly reopened 18th-century Church of the Transfiguration, topped with 22 domes, is said to have been built without a single nail.

Calculations by contemporary engineers and builders have not been able to fully explain how the structure holds together, because of its complexity and also the unpredictable nature of wood, “which behaves just like a person, completely differently in different situations”, Nezvitskaya says…
For now, those will be held just once a year, on the Orthodox Feast of the Transfiguration on 19 August.
More images here and google maps location here.