Best places to visit in Serpukhov

Serpukhov (Russian: Серпухов, IPA: [ˈsʲɛrpʊxəf]) is a city in Moscow Oblast, Russia, located at the confluence of the Oka and the Nara Rivers, 99 kilometers (62 mi) south from Moscow on the Moscow—Simferopol highway.
It's 00:39 right now , with broken clouds and the temperature of -0.2°C (31.64°F) in Serpukhov.