The intersection of Main St and Roosevelt Ave, downtown Flushing, can feel like the Times Square of a city a world away from NYC. Immigrants from all over Asia, primarily Chinese and Korean, make up this neighborhood bursting at the seams with markets and restaurants filled with delicious and cheap delicacies. The Long Island Rail Road station and terminal for the 7 train see around 100,000 people pass through daily. Flushing Meadows Corona Park , meanwhile, is the home of Citi Field , the USTA Billie Jean King National Tennis Center (the US Open is held here every August) and many lakes, ball fields, bike paths and grassy expanses, and was used for the 1939 and 1964 World's Fairs, of which there are quite a few faded leftovers – including Queens' most famous landmark, the stainless-steel Unisphere, standing 120ft high and weighing 380 tons. Kids can learn about science and technology through fun hands-on exhibits at the New York Hall of Science ; a quirky minigolf course is on the site. Also within this massive park is the Queens Museum of Art .