The park's highlight was definitely a couple of old Victorian era greenhouses, much like Kew Gardens in London, which are quite an architectural spectacle. But the action revolves around the large lake and the overwrought memorial to somebody lording over the lake. The shores are teeming with teenagers, the lake full of couples rowing, and there was a big concert going on behind the memorial. It was probably the most crowded place we've been in all of Madrid.