Vanity Fair asked 52 of the world’s leading architects, critics, and deans of architecture schools for their five most important buildings constructed since 1980, and for the greatest work of architecture thus far in the 21st century. With 28 votes, the most voted building since 1980 was Frank Gehry’s Guggenheim Museum in Bilbao, Spain.
You can see the complete answers of the 52 respondents here. Seen at About.com.