World's Most Stunning Museums (PHOTOS)

World's Most Stunning Museums (PHOTOS)

Though best known for their stunning collections, many of the world's museums are also architectural icons which exemplify cutting-edge design. From the out-of-this-world shape of Brazil's Niterói Contemporary Art Museum to the iconic shell-like spirals of New York's Solomon R. Guggenheim Museum, the structures are often as captivating, perplexing and radical as the world-renowned pieces they house.