Casa Milà, Barcelona, Spain.
This famous (and bizarre) landmark was designed by Barcelona’s most famous architect, Antoni Gaudi. Built between 1906–1912, this crazy yet iconic house makes up a section of the thoroughfare Passeig de Gracia called “The Block of Discord.” Pere Mila, a rich businessman, wanted his house to stand out, so he hired Gaudi to make something interesting. Gaudi destroyed the current – more normal – building, and built….well, he built this, whatever this is! Casa Milà is now a UNESCO site for its…wait for it…innovative architecture (what a shocker). And Casa Milà, like many of its sisters and brothers located in this Catalan city, it is just as strange on the inside as on the outside!