twelve sites would eventually be considered for the zoo throughout the last three decades of the 19th century, including the North Meadow of Central Park. Some animals were moved to the Arsenal in 1865, and larger animals grazed there during summers. A "deer park" was established at the current site of the Metropolitan Museum of Art three years later. In 1870, when the Tammany Hall political organization took control of the Central Park commission, it mandated that the Central Park menagerie buy its own animals rather than accept donations, and it moved the animals to five structures behind the Arsenal. The same year, Benjamin Waterhouse Hawkins sculpted dinosaur figures for a proposed dinosaur exhibit at the zoo, but they were destroyed by Tammany Hall officials who did not appreciate these figures, and the pieces were rumored to be buried nearby. The menagerie became popular because of its free admission and proximity to working-class Lower Manhattan; by 1873, it saw 2.5 million annual visitors. The first permanent menagerie building was constructed behind the Arsenal in 1875. The menagerie reached peak popularity in the mid-1880s after a chimpanzee nicknamed "Mike Crowley" was imported from Liberia. Observers such as former president Ulysses S. Grant showed up at the Monkey House to see the chimpanzee, overfilling the building past capacity. However, Irish-American groups took offense to the chimpanzee's nickname, saying that the names given to animals in the Central Park menagerie were stereotypically Irish, and thus derogatory to that ethnic group. Frederick Law Olmsted also disapproved of the menagerie, believing Central Park to be better suited for scenic vistas than for entertainment, though he admitted that the zoo was the most popular part of the park. By the 1890s, wealthy residents of nearby neighborhoods were clamoring for the zoo to be relocated somewhere else, such as the North Meadow. However, these efforts met resistance, as the Central Park menagerie was popular among the general public and among the politicians that represented them. This subsequently led to the creation of the Bronx Zoo, a much larger, privately operated zoo in the Bronx in 1897. Though wealthy residents hoped that people would travel to the Bronx Zoo for its superior facilities, the Central Park Zoo continued to be popular even after the Bronx Zoo opened in 1899. The Central Park menagerie attracted over three million people annually by 1902, more than the Museum of Natural History