"I went to Haus Hiltl for a buffet lunch and appreciated that it holds the Guinness World Records title as the world’s oldest vegetarian restaurant." - Adam Groffman Adam Groffman Adam Groffman is an award-winning writer, editor, and marketer. He is based in Brooklyn, NYC, where he works in digital marketing by day and as a writer at night. He covers cities, LGBTQ travel, lifestyle topics, and nightlife. Travel + Leisure Editorial Guidelines