Best 5 amazing architectural buildings

The Royal Institute of British Architects (RIBA) has honoured the RIBA International Awards to buildings for their breathtaking beauty and futuristic design in 2011. Find out the list of best 5 buildings with marvelous architecture:

1. Masdar Institute Campus, Abu Dhabi - The campus built by the Architect, Foster and Partners uses traditional and modern materials for a perfect blend of natural lighting and cooling that minimizes energy requirements.
2. Guangzhou Opera House, Guangzhou, China - Built by Zaha Hadid Architects, this structure resembles two pebbles along the Pearl River and looks like a space ship under the stars, which costs around USD 200 million.
3. Alila Villas Uluwatu, Bali, Indonesia - It is a group of buildings, terraces, pools and gardens situated 100 meters above the Indian Ocean on a limestone cliff, which costs around USD 100 million.
4. Galleria Centercity Department Store, Cheonan, Republic of Korea - The beautiful Galleria Cheonan built by the architect UN Studio, is a semi-cultural meeting place and a department store with a total area of 66,700 sq m.
5. North College, Rice University, Houston, USA - This building with 400 rooms has a glass-covered cafe and a special exhibition gallery. The gross internal area is about 300,000 sq m.