heart-shaped metal cage filled with plastic bottle caps

heart-shaped metal cage filled with plastic bottle caps. It is located in the city of Varna, Bulgaria, at the coordinates 43.219, 27.898. The cage is painted red and has a red line running diagonally across the center, resembling a heart rate monitor. A white sign with a hand and text is attached to the cage. The sign reads, "Аз вярвам и помагам на I believe and help." A red fire extinguisher is in the lower right corner. The heart-shaped cage is surrounded by a grey concrete floor. There are no people visible in the image. The cage is likely a donation bin for collecting plastic bottle caps for recycling.