The coolest buildings used to have sharp angles and straight lines — but nowadays, a lot of the world's most beautiful structures are entirely round. Here are the most beautiful and impressive circular buildings of the 21st century.
The 25-floor Fang Yuan Building, an office building in Shenyang, China, completed in 2001.
Bibliotheca Alexandrina, Alexandria, Egypt, designed by Snøhetta Architects and Hamza Associates, 2002
The 285 ft (87 m) all-glass Radisson BLU hotel in Frankfurt am Main, Germany, constructed between 2003 and 2005, designed by John Seifert
(via Wikimedia Commons)
Shabyt (Palace of Creativity, but also known as the Dog Bowl), Astana, Kazakhstan
Tietgen Dormitory, Copenhagen, Denmark, by Lundgaard & Tranberg Architects, 2006
Placebo Pharmacy, Athens, Greece, designed by KLab Architecture, 2009
Al Dar Headquarters, a 23-floor and 407 ft (124 m) tall building in Al Raha, Abu Dhabi, United Arab Emirates, designed by MZ Architects, constructed between 2007 and 2010
Emergency And Infectious Diseases Unit of Skåne University Hospital, Malmö, Sweden, designed by C.F. Møller and Link Arkitektur, built between 2006 and 2011
Alesia Museum, Alise-Sainte-Reine, France, by Bernard Tschumi Architects, 2012
The 33-floor (453 ft or 138 m tall) Guangzhou Circle in Guangzhou, Guangdong, China, designed by AM Projects Milan, built between 2010 and 2014. It's the new headquarters of the Guangdong Plastics Exchange, and looks remarkably like an antique Chinese copper coin.