In addition to other programming, the museums collaborate for the annual Museum Mile Festival, held each year in June, to promote the museums and increase visitation. Many of the world's most lucrative art auctions are held in New York City. New York City's food culture includes an array of international cuisines influenced by the city's immigrant history. Central and Eastern European immigrants, especially Jewish immigrants from those regions, brought bagels, cheesecake, hot dogs, knishes, and delicatessens (or delis) to the city. Italian immigrants brought New York-style pizza and Italian cuisine into the city, while Jewish immigrants and Irish immigrants brought pastrami and corned beef, respectively. Chinese and other Asian restaurants, sandwich joints, trattorias, diners, and coffeehouses are ubiquitous throughout the city. Some 4,000 mobile food vendors licensed by the city, many immigrant-owned, have made Middle Eastern foods such as falafel and kebabs examples of modern New York street food. The city is home to "nearly one thousand of the finest and most diverse haute cuisine restaurants in the world", according to Michelin. The New York City Department of Health and Mental Hygiene assigns letter grades to the city's restaurants based upon their inspection results. As of 2019, there were 27,043 restaurants in the city, up from 24,865 in 2017. The "Queens Night Market" in Flushing Meadows–Corona Park attracts more than ten thousand people nightly to sample food from more than 85 countries. New York City is well known for its street parades, which celebrate a broad array of themes, including holidays, nationalities, human rights, and major league sports team championship victories. The majority of parades are held in Manhattan. The primary orientation of the annual street parades is typically from north to south, marching along major avenues. The annual Macy's Thanksgiving Day Parade is the world's largest parade, beginning alongside Central Park and processing southward to the flagship Macy's Herald Square store; the parade is viewed on telecasts worldwide and draws millions of spectators in person. Other notable parades including the annual St. Patrick's Day Parade in March, the LGBT Pride March in June, the Greenwich Village Halloween Parade in October, and numerous parades commemorating the independence days of many nations. Ticker-tape parades celebrating championships won by sports teams as well as other heroic accomplishments march northward along the Canyon of Heroes on Broadway from Bowling Green to City Hall Park in Lower Manhattan.