

A construction worker examines the 'Echolot' (sonar), a giant wooden pavilion during the official press preview for the yearly German horticultural show 'Bundesgartenschau 2011' in Koblenz, Germany, on April 7. The ground plan of the wooden construction is derived from the oscillogram curve of the sonar of a local bat, the so-called 'evening sailor,' by architecture students of the western German city at the junction of the river Moselle and Rhine. The garden show opened its gates on April 15 and runs till October 16. Wolfgang Rattay/Reuters
The 'Twirl' sculpture by Iraqi architectural firm Zaha Hadid is shown at the 'Statale' University during Milan's Furnishing Accessories Exhibition, in Milan, Italy, on April 14. The sculpture is a contemporary study on courtyard architecture, the design utilizes a series of ultraslim slabs by Italian ceramic manufacturer Lea Ceramiche, to fabricate a vortex-like three-dimensional structure in the 16th century courtyard of Milan's state university. The Milan Furniture Fair, hosting designers and their creations from all over the world, ran from April 12 to 17. Luca Bruno/AP
In this April 16, 2004, file photo, a soccer stadium built by Portuguese architect Eduardo Souto de Moura, is seen in the city of Braga, Portugal, where the European soccer championship was held in 2004. Souto de Moura, whose buildings are praised for their careful use of natural materials and their unexpected dashes of color, has won the 2011 Pritzker Architecture Prize, the prize's jury announced on March 28, 2011. Paulo Duarte/AP/File
The Braga Municipal stadium, designed by Portuguese architect Eduardo Souto de Moura, is shown in this undated photo. Luis Ferreira Alves/Reuters
This undated photo provided by Pritzker Prize Awards shows the house in Serra da ArrĂ¡bida, Portugal, recognized by the Pritzker Architecture Prize as one which earned Portuguese architect Eduardo Souto de Moura the Pritzker Architecture Prize, which was announced on March 28, 2011. Luis Ferreira Alves/Pritzker Prize Awards/AP
In this February 2009 file photo, the Casa da Musica station of Porto's subway system, for which Portuguese architect Eduardo Souto de Moura was chief architect of designers, is seen in Porto, Portugal. Paulo Duarte/AP/File
In this Sept. 14, 2009, file picture, women enter the Casa Das Historias, or house of the stories, a museum dedicated to the work of Portuguese artist Paula Rego, in Cascais, outside Lisbon, Portugal. Rego chose architect Eduardo Souto de Moura to design the brand new building housing the museum that was inaugurated in 2009. Armando Franca/AP/File
This Jan. 10 photo shows the spiral staircase at the entrance to the new Salvador Dali Museum in St. Petersburg, Fla. The opening of the new Salvador Dali Museum in St. Petersburg this January is the latest in a string of splashy arts venues on Florida's west coast. Chris O'Meara/AP/File