This is the most unique street shrine that I saw in Valletta, the capital city of Malta. It's a 3D representation of Santa Casa, the Virgin Mary's house, which was miraculously moved from the Holy Land to Loreto, Italy in the 13th century. The shrine shows the house in transit being carried by a meringue full of angels.
I've written about the legend of this house and the Madonna di Loreto before, in one of my posts about Venice's church of San Pantalon, which has an oratory that is a recreation of Santa Casa.
Another unique thing about this Malta shrine is its plaque which offers indulgences to those who pray before the shrine. I saw many shrines in Malta with similar offers.
This shrine was high up on the building, and I couldn't get a good photo of inside the house, but I could tell that it's a framed image of the Black Madonna who is on the altar in the church in Loreto (and there's a copy in Venice in the San Pantalon oratory).