We've recently been to a very interesting restaurant, Oblomov.
Oblomov is a famous Russian character of a novel by Ivan Goncharov. Like most Russian literature, "Oblomov" novel (1859) is very versatile and profound. However, in a nutshell, the protagonist, Oblomov, is a symbol of dwindling and lapsing into idleness Russian nobility.
The three-floored mansion in the city center houses the restaurant. There are 3-4 rooms designed in the 19th century style. Having entered Oblomov, you're immediately find yourself in the atmosphere of the 19th century. They tried so hard to restore the atmosphere that they succeeded. Being there is an unforgettable experience. Which I would not apply to the food.