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 13:42 right now , with scattered clouds and the temperature of 20.72°C (69.296°F) in Serpukhov.