"Putin's Palace" is an Italianate palace complex located on the Black Sea coast near Gelendzhik, Krasnodar Krai, Russia.
The complex first came to public attention in 2010 after whistleblower Sergei Kolesnikov published an open letter to Russian president Dmitry Medvedev exposing the construction of the palace. Kolesnikov also stated that the undertaking was run by Nikolai Shamalov who was acting on behalf of Vladimir Putin. Alexander Ponomarenko was later reported to have ownership.
The complex drew more substantial public attention in 2021, when Russian opposition leader Alexei Navalny's Anti Corruption Foundation released an investigative documentary film about it which detailed a corruption scheme allegedly headed by Putin and claimed that the palace was built for the president's personal use.
Wikipedia https://en.wikipedia.org/wiki/Putin's_Palace
Coordinates 44°25'9.157" N 38°12'18.745" E