I've been a fan of ACB's (Art & Culture Bureau) half-hour architecture documentaries ever since I discovered them back in 2006. The series, directed by Richard Copans and Stan Neumann (individual docs are directed by them but sometimes by others), does an excellent job at explaining important buildings through location shooting, architectural models, interviews with the architects, and thoughtful narration.
When it came time for me to research the projects in my recently published book 100 Years, 100 Buildings, I watched all of the relevant ACB documentaries. From the 100 in my book, there are (now) 14 buildings that overlap, each of which is embedded below. For more ACB architecture documentaries, visit their YouTube playlist, where 59 of them are found as of today.
1923 Notre Dame du Raincy | Auguste Perret | Raincy, France
1926 Bauhaus Dessau | Walter Gropius | Dessau, Germany
1929 Barcelona Pavilion | Ludwig Mies van der Rohe | Barcelona, Spain
1950 Johnson Wax Buildings | Frank Lloyd Wright | Racine, Wisconsin, United States
1952 Säynätsalo Town Hall | Alvar Aalto | Säynätsalo, Finland
1964 Yoyogi National Gymnasium | Kenzō Tange | Tokyo, Japan
1971 Phillips Exeter Academy Library | Louis I. Kahn | Exeter, New Hampshire, United States
1977 Centre Georges Pompidou | Renzo Piano and Richard Rogers | Paris, France
1982 SESC Pompeia | Lino Bo Bardi | São Paulo, Brazil
1996 Therme Vals | Peter Zumthor | Vals, Switzerland
1997 Guggenheim Museum Bilbao | Frank Gehry | Bilbao, Spain
1999 Jewish Museum Berlin | Daniel Libeskind | Berlin, Germany
2000 Sendai Mediatheque | Toyo Ito | Sendai, Japan
2013 Xiangshan Campus, China Academy of Art | Amateur Architecture Studio | Hangzhou, China