This architectural masterpiece is more than just a salute to the privy member; it's also engineered with an eye toward the environment. Built with two concrete towers, one nestled inside the other, and then coated with a skin of aluminum and thousands of glass louvers, the Torre Agbar is an example of bioclimatic architecture, which is a fancy way of saying, "We can open the windows, instead of blasting the air-conditioning."
One of the most striking design features (besides looking like a giant dildo) is the building's futuristic and nocturnal light system. At night, the glass panels are illuminated by LED lights, allowing the building's facade to change colors in a rapid fashion. It's a pretty fantastic light show that, depending on how smutty your mind is, also appears to be a giant penis trying on a rainbow assortment of multicolored condoms against the night sky.
But, not everyone thinks the Torre Agbar looks like a penis. Locals commonly refer to it as "El Supositorio," which seems like an odd choice, as living in the shadow of a metaphorical dong would seem to be preferable to a giant suppository.