This document lists 10 buildings known for their unusual or wild architecture. Some of the buildings mentioned include Casa Batllo in Barcelona, the Country Music Hall of Fame and Museum in Nashville, Tennessee, the Guggenheim Museum in Bilbao, Spain, and the Sydney Opera House in Sydney, Australia. The list also includes less famous structures like the Ideal Palace of Ferdinand Cheval in Hauterives, France and the Residential Car-House in Salzburg, Austria.

1. The World's Wildest Architecture

2. Casa Batllo (Barcelona)

3. Country Music Hall of Fame and Museum (Nashville, Tenn.)

4. Frederick R . Weisman Art Museum (Minneapolis)

5. Guggenheim Museum ( Bilbao, Spain )

6. Ideal Palace of Ferdinand Cheval (Hauterives, France)

7. Longaberger Co. ( Newark, Ohio )

8. Residential Car - House (Salzburg, Austria)

9. Sydney Opera House (Sydney)

10. Torre Galatea ( Figueras, Spain )

11. The Haines Shoe House (York County, Pa.)

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