Question: Filter and Architectural Digest, are magazines of which nationality?

Context paragraphs:
James Huniford: '"James Huniford or Ford Huniford is an American designer.  After founding his own design firm Huniford Design Studio, his ensuing work within the residential design built his reputation in New York with work appearing in "Architectural Digest", "W Magazine", "Vogue", the "New York Times", and " Elle Decor".  He was chosen by New York Spaces as a 'Top 50' designer of 2015 and was among "Elle Decor's 2016 and 2011 'A-List's stating his work as "decorating at its most muscular and glamorous "

Curbed: Curbed is an American real-estate blog network founded by Lockhart Steele.  s of 2016 there are area-specific editions for Atlanta, Austin, Boston, Chicago, Detroit, the Hamptons, Los Angeles, Miami, New Orleans, New York City, Philadelphia, San Francisco, Seattle, Washington, D.C., and North American ski towns.  There's also a National site, founded in 2010, that Steele once described as ""Architectural Digest" after a three-martini lunch.”  The site hosts an annual contest, the Curbed Cup, to pick the best neighborhood in each city.

Condé Nast: Condé Nast Inc. (stylized as CONDÉ NAST) is an American mass media company founded in 1909 by Condé Montrose Nast, based at One World Trade Center and owned by Advance Publications.  The company attracts more than 164 million consumers across its 20 brands and media: "Allure", "Architectural Digest", "Ars Technica", "Backchannel", "Bon Appétit", "Brides", "Condé Nast Traveler", "Epicurious", "Glamour", "Golf Digest", "GQ", "Pitchfork", "Self", "Teen Vogue", "The New Yorker", "Vanity Fair", "Vogue", "W" and "Wired".

Robin Pogrebin: Robin Pogrebin (born May 17, 1965) has been a reporter for "The New York Times" since 1995, where she has covered arts institutions, architecture, and other subjects.  In October 2015, she was appointed art and auction reporter.  At the Times, she has also covered the magazine industry for the business section and city news for Metro.  She was previously an associate producer for Peter Jennings documentary unit at ABC News, where she did stories on subjects such as Bosnia and Haiti.  Before that, she spent three years as a staff reporter for the "New York Observer", covering a range of subjects including city government, law and the restaurant business.  Pogrebin's articles also run regularly in the "International Herald Tribune" and she has occasionally written freelance pieces for publications such as "Architectural Digest", "New York", "Vogue", and "Departures".

Filter (magazine): FILTER was a seasonal American music and off-beat entertainment magazine which was founded in 2002.  It featured commentary and photos of up-and-coming musicians and filmmakers ranging from actors to writer-directors.  Each season's (Winter, Spring, Summer, Fall, and Holiday) issue highlighted a reasonably well-known cover artist while also taking a look at smaller artists under the heading "Getting to Know".  The magazine also included reviews of forthcoming albums and DVDs.

ANICHINI, Inc.: ANICHINI, Inc. is an American luxury textiles company based in Tunbridge, Vermont.  The company is a manufacturer and importer of luxury linens and textiles and produces hand made products in the United States.  According to the Martha Stewart American Made website, ANICHINI is a full-spectrum textile company.  ANICHINI products have been featured in Architectural Digest, Elle Decor, Gotham, and House Beautiful magazines and used by celebrities Cher, Sharon Stone, Christina Aguilera, Tom Cruise, Oprah Winfrey, Barbra Streisand, Madonna, Mariah Carey, Martha Stewart, and Steven Spielberg.

Thomas Roszak: Thomas Roszak, an architect, was born in Chicago in 1966; he received an Honor Award from the American Institute of Architects in 2008 and in 2005 was named one of "the world's top architects" by "Architectural Digest".  In his 27-year career, Roszak has developed, designed, and built commercial properties, hotels, condominiums, and award-winning private residences.  He heads three separate companies: Thomas Roszak Architecture, devoted to architecture and planning; TR Management + Consulting, which focuses on project management and real estate consulting; and SteelGrass, LLC, dedicated to environmentally sensitive design-build projects and construction management for residential and commercial properties.  He was an Adjunct Professor in the College of Architecture, Illinois Institute of Technology, where he taught comprehensive architectural design and construction studio.

Malator: Malator is a house in Druidston, Pembrokeshire, Wales, built in the Earth house architectural style.  It was built for, and owned by, former Member of Parliament Bob Marshall-Andrews.  The architectural firm who designed the building was Future Systems.  Malator has appeared on television series such as the More4 programme "Homes by the Sea", and has been received positively by critics with "Architectural Digest" listing it as one of the most innovative houses of the 20th century.

Costas Kondylis: Costas Kondylis and Partners, LLP, is an American architectural firm, headquartered in the Manhattan borough of New York City, New York.  Founded by Costas Kondylis, the firm and its work have been featured in several magazines, including "Architectural Digest", "The New York Times", "The New Yorker", "Town & Country" and "Vogue".  It has also been the subject of a television documentary.

Architectural Digest: Architectural Digest is an American monthly magazine founded in 1920.  Its principal subject is interior design, not architecture more generally, as the name of the magazine suggests.  The magazine is published by Condé Nast, which also publishes eight international editions of "Architectural Digest".

Supporting paragraphs: Filter (magazine) Architectural Digest
Answer: American