Manhattan is the most densely populated of New York City’s 5 boroughs with a census-estimated 2014 population of 1,636,168. It's mostly made up of Manhattan Island, bounded by the Hudson, East and Harlem rivers. Among the world’s major commercial, financial and cultural centers, it’s the heart of “the Big Apple.” Its iconic sites include skyscrapers such as the Empire State Building, neon-lit Times Square and the theaters of Broadway. A permanent European presence in New Netherland began in 1614 with the founding of a Dutch fur trading settlement on Governors Island. The skyscraper, which has shaped Manhattan's distinctive skyline, has been closely associated with New York City's identity since the end of the 19th century. From 1890–1973, the world's tallest building was in Manhattan. One World Trade Center, a replacement for the Twin Towers of the World Trade Center, is currently the tallest building in the Western Hemisphere. 17.8% of the borough, a total of 1,686 acres (10.87 km1), is devoted to parkland, 70% of this outside Central Park. Manhattan is home to many world class museums and art galleries.