I am so intrigued by this piece of architecture designed by Antoni Gaudi, it's called 'Casa Mila'. It's located in Barcelona, Spain.
It is often referred to as La Pedrera. It almost has a spooky feel to it. I'm drawn to its curves.
It doesn't use a single straight line, the building doesn't use load bearing walls but rests on pillars and arches. Learn more here. There is such a wealth of knowledge on this site, there are wonderful interviews with tenants who live there, videos and beautiful photos of the interiors, details on the architecture and on and on. Worth a visit!