Question: Which magazine has headquarters in Denver, Colorado: Sports Illustrated or Viltis?
Context: Viltis is a magazine of folklore, folk music and folk dance.  It was created by Vytautas Beliajus in the 1940s and was one of the first magazines devoted to folk customs and arts.  It is illustrated and printed in English.  The headquarters was in Denver, Colorado.  Its scope is international, and a typical issues covers several different regions.  Issues include recipes, dance descriptions, book reviews, research articles, performance reviews, travel tips, costuming advice, and other topics. Marc André Laguerre (February 21, 1915 – January 18, 1979) was a journalist and magazine editor, best known as the managing editor of "Sports Illustrated" from 1960 to 1974, during which time he oversaw the growth in the magazine from a niche publication to become the industry leader in weekly sports magazines.  It was under his leadership that the annual "Sports Illustrated Swimsuit Issue" was first published.  When he retired in 1974, he had been managing editor of the magazine for 704 issues, then a record among magazines published by Time, Inc., SI's parent company. Sports Illustrated is the first and leading 24-hour sports HD network in Asia.  Launched in October 1, 2009 by Yes Television, the channel was relaunched in 2016 by the newly-formed joint-venture between ASN Ltd. and Time Inc. (owners of the Sports Illustrated magazine). Sports Illustrated Women (previously called Sports Illustrated for Women) and also known as SI Women, was a bimonthly sports magazine covering (according to its statement of purpose) "the sports that women play and what they want to follow, from basketball to tennis, soccer to volleyball, field hockey to ice hockey and figure skating and more.  It featured real athletes, told their real stories and gave the real scoop on women's sports.  "Sports Illustrated for Women" was published by Time Inc." It ran for 20 issues, between March 2000 and November 2002, targeting an audience of women, 18–34 years old, with "a passion for sports." Inside Sports magazine was a major general interest sports magazine in the United States.  Launched in 1979 by Newsweek, it was designed as an edgier, monthly alternative to the longer-running "Sports Illustrated" and "SPORT Magazine" brands.  In addition to 12 issues a year, it featured a "Swimsuit Spectacular" ("IS"' answer to the famous Sports Illustrated Swimsuit Issue). The Sports Illustrated Swimsuit Issue is published annually by American "Sports Illustrated" magazine.  The cover photograph features fashion models wearing swimwear in exotic locales.  All models featured on the cover of the swimsuit issue in the magazine's history have been women.  According to some, the magazine is the arbiter of supermodel succession.  The swimsuit issue of the magazine carries advertising that, in 2005 amounted to in value.  New issues come out around the middle of February or later.  First published in 1964, it is credited with making the bikini, invented in 1946, a legitimate piece of apparel.  The issue that got the most letters was the 1978 issue.  The best selling issue was the 25th Anniversary Issue with Kathy Ireland on the cover in 1989. Sports Illustrated Kids (SI Kids, trademarked Sports Illustrated KIDS, sometimes Sports Illustrated for Kids) is a monthly spin-off of the weekly U.S. sports magazine "Sports Illustrated".  "SI Kids" was launched in January 1989 and includes sports coverage with less vocabulary and emphasis on humor.  The magazine's secondary purpose is to market sports to children. Heinz Kluetmeier (born 1942) is a German-born American sports photographer for "Sports Illustrated".  He has covered every Olympic Games for the magazine since the 1972 Munich games except one, and has over 100 "Sports Illustrated" cover photographs to his credits.  He has served two stints as the magazine's director of photography and received the Lucie Award for outstanding achievement in sports photography in October 2007. Larry Johnson (born in Albuquerque, New Mexico) is an American author and former employee of the Alcor Life Extension Foundation (Alcor), a cryonics company for whom he once served as chief operating officer.  He received notoriety with the release of the August 13, 2003 issue of "Sports Illustrated".  "Sports Illustrated" sportswriter Tom Verducci, along with Johnson's input, published an article about “What Really Happened to Ted Williams?"  Immediately following the "Sports Illustrated" article, Johnson agreed to an interview with Diane Sawyer of Good Morning America. Sports Illustrated is an American sports media franchise owned by Time Inc. Its self-titled magazine has over 3 million subscribers and is read by 23 million people each week, including over 18 million men.  It was the first magazine with circulation over one million to win the National Magazine Award for General Excellence twice.  Its swimsuit issue, which has been published since 1964, is now an annual publishing event that generates its own television shows, videos and calendars.
Answer: Viltis