Oh myyy, this, this is absolutely fabulous.
Damn reddit, I knew they would delete that video clip.
Shaped like a vulva: Utroba Cave. Photo credit: Ivo Filipov, Wikipedia.
Yes, you read that right, the Womb Cave (Утроба, Utroba) in the Rhodope Mountains bears an uncanny resemblance to the female genitalia! This is not exactly a coincidence though… there’s evidence that the cave’s opening was shaped by the ancient Thracians around 1000 BC. The cave hosted a Thracian sanctuary to female fertility at the time.
Incredibly, the Womb Cave is designed in such a way that a ray of sunlight enters the cave at such an angle that it goes into the rock womb and hits the middle of the altar directly, symbolically inseminating it. Feel like exploring this vulva-shaped cave? Then head for southeastern Bulgaria or specifically the isolated village of Nenkovo near Kardzhali.