The Rastorguyev–Kharitonov Palace is arguably the grandest palatial residence in the Urals. This Neoclassical townhouse was commissioned in 1794 by Lev Rastorguyev, an Old Believer merchant and landowner. The main house was built on the so-called Annunciation Hill in Yekaterinburg. The nearby Annunciation Church was built at the same time.
The palace takes its present name from Pyotr Kharitonov, Rastorguyev's son-in-law. He inherited the property in 1824 and employed architect Mikhail Pavlovich Malakhov to connect the buildings with a series of covered passageways. An English park on the grounds was also commissioned by Kharitonov. His harsh treatment of the serfs gave rise to a bevy of legends about a network of underground chambers and passages where his peasants were tortured.
Wikipedia https://en.wikipedia.org/wiki/Kharitonov_Palace
Coordinates 56°50'43.296" N 60°36'40.383" E