The flat of Oleg Mitasov, a mentally ill man from Kharkov, Ukraine. He died in 1999.
Oleg Mitasov was an educated man, a Master of economics. The rumor is that his illness developed after he had left the manuscript of his PhD thesis behind in a streetcar, thus never becoming a PhD.
Mitasov covered all his flat and furniture in creepy inscriptions. Some of them are legible, some are just a set of letters. “Mitasov” and “VAK” (ВАК, the State Commission for Academic Degrees and Titles, where he was supposed to bring his manuscript) are common words he wrote.
After his and his mother’s death the flat was sold. They say it’s been renovated and there’s an office there now.