Designing architecture in 3d environments frees us from the constraints imposed by normal structural requirements and architectural norms.   I like many styles of architecture, but have a fascination with modern architecture.  Here is one video about Micheal Rojkins's PR34 house.  It inspired me to experiment with basic curved shape structures when learning to use the Second Life build tools to develope models in OpenSim.

"Modern architecture is characterized by simplification of form and creation of ornament from the structure and theme of the building. The first variants were conceived early in the 20th century. Modern architecture was adopted by many influential architects and architectural educators, however very few "Modern buildings" were built in the first half of the century.

The exact characteristics and origins of Modern architecture are still open to interpretation and debate."

-wikipedia