The Vancouver Convention and Exhibition Centre has a green roof – and at 5 acres and 400,000 indigenous plants, it's the largest one in North America.
The Hundertwasser House is an apartment building in Vienna designed by Friedensreich Hundertwasser who was considered an architectural rebel. His vision was of "free architecture for all," meaning without standards, specifications or straight lines — kind of like Dr. Seuss!
St. Stephen's Cathedral is the "mother church of the Roman Catholic Archdiocese" and is considered the most important religious building in Vienna. The current Romanesque and Gothic form of the cathedral stands on the ruins of two earlier churches and the roof is made up of 230,000 multi-colored and ornately patterned tiles.
The Asahicho Clinic in Japan was designed with a house-shaped roof to ensure that its elderly patients feel more at home. Architect Hikalu Tanabe of Hkl Studio created a series of triangular arches to look like the gable of a house and help it blend in with the residential homes in the neighborhood.
This cliff house called Casa Acantilado in Salobrena, Spain was designed by architect Jaime Bartolome. The roof is finished with zinc shingles that have turned-up corners to evoke a reptilian surface.
The 206-room Qasr Al Sarab Desert Resort (which means "Palace of the Mirage") doesn't simply boast a "green" roof – the design of the whole structure has been awarded the international Green Globe Certification.
With foliage that covers all walls and the roof, too, this house takes the phrase "green roof" to a whole new level!
Right in the center of midtown Manhattan is the 620 Loft & Garden, an amazing rooftop garden with a stunning panoramic view of the city.
This converted oast house in West Farleigh, Kent, is an example of vernacular architecture, a style that is based on local needs and availability of construction materials.
The Ojai Studio is a guest house for resident artists that has a small gambrel roof, which was called a Dutch roof in the 1700s.