Architecture
Álvaro Joaquim de Melo Siza Vieira, GOSE, GCIH, GCIP, is a Portuguese architect, and architectural educator. He is internationally known as Alvaro Siza and in Portugal as Siza Vieira. He is one of my favorite architect that always inspire me of 3d modeling. Siza is a cult figure on the architecture circuit whose work has been described as "poetic modernism"
You can find more his inspiration from here
Product
3D modeling for products can have different textures and feelings.
Figure
such as: https://www.behance.net/byMikeRed
City VIew
You can find more here