1. Museu de la Tècnica de Manresa
To understand what makes Museu de la Tècnica de Manresa cool, you have to know a little something about where it is located. It's housed inside a monumental water depot near Manresa, in central Catalonia, and once held 12 million liters of water. Luckily, you don't need scuba gear to visit these days.
Now, it's a technology museum with two fascinatingly specific permanent exhibitions that document the technology and history of the area. Focusing on water and textiles specifically, these exhibitions offer a looking glass into the past, showing how each changed the physical and cultural landscape of the area.