Tompkins Square Halloween Dog Parade in New York City NEW YORK, NY - OCTOBER 21: Dogs in costumes attend the 27th Annual Tompkins Square Halloween Dog Parade in Tompkins Square Park on October 21, 2017 in New York City. More than 500 animals wear costumes to what is known as one of the largest dog Halloween events in the USA. (Photo by Eduardo Munoz Alvarez/Getty Images)Photo by: Eduardo Munoz Alvarez Tompkins Square Halloween Dog Parade in New York City NEW YORK, NY - OCTOBER 21: Dogs in costumes attend the 27th Annual Tompkins Square Halloween Dog Parade in Tompkins Square Park on October 21, 2017 in New York City. More than 500 animals wear costumes to what is known as one of the largest dog Halloween events in the USA. (Photo by Eduardo Munoz Alvarez/Getty Images)Photo by: Eduardo Munoz Alvarez Tompkins Square Halloween Dog Parade in New York City NEW YORK, NY - OCTOBER 21: Dogs in costumes attend the 27th Annual Tompkins Square Halloween Dog Parade in Tompkins Square Park on October 21, 2017 in New York City. More than 500 animals wear costumes to what is known as one of the largest dog Halloween events in the USA. (Photo by Eduardo Munoz Alvarez/Getty Images)Photo by: Eduardo Munoz Alvarez Tompkins Square Halloween Dog Parade in New York City NEW YORK, NY - OCTOBER 21: A dog in costume attends the 27th Annual Tompkins Square Halloween Dog Parade in Tompkins Square Park on October 21, 2017 in New York City. More than 500 animals wear costumes to what is known as one of the largest dog Halloween events in the USA. (Photo by Eduardo Munoz Alvarez/Getty Images)Photo by: Eduardo Munoz Alvarez Tompkins Square Halloween Dog Parade in New York City NEW YORK, NY - OCTOBER 21: A dog in costume attends the 27th Annual Tompkins Square Halloween Dog Parade in Tompkins Square Park on October 21, 2017 in New York City. More than 500 animals wear costumes to what is known as one of the largest dog Halloween events in the USA. (Photo by Eduardo Munoz Alvarez/Getty Images)Photo by: Eduardo Munoz Alvarez Tompkins Square Halloween Dog Parade in New York City NEW YORK, NY - OCTOBER 21: A dog in costume attends the 27th Annual Tompkins Square Halloween Dog Parade in Tompkins Square Park on October 21, 2017 in New York City. More than 500 animals wear costumes to what is known as one of the largest dog Halloween events in the USA. (Photo by Eduardo Munoz Alvarez/Getty Images)Photo by: Eduardo Munoz Alvarez Tompkins Square Halloween Dog Parade in New York City NEW YORK, NY - OCTOBER 21: A dog in costume attends the 27th Annual Tompkins Square Halloween Dog Parade in Tompkins Square Park on October 21, 2017 in New York City. More than 500 animals wear costumes to what is known as one of the largest dog Halloween events in the USA. (Photo by Eduardo Munoz Alvarez/Getty Images)Photo by: Eduardo Munoz Alvarez Tompkins Square Halloween Dog Parade in New York City NEW YORK, NY - OCTOBER 21: A dog in costume attends the 27th Annual Tompkins Square Halloween Dog Parade in Tompkins Square Park on October 21, 2017 in New York City. More than 500 animals wear costumes to what is known as one of the largest dog Halloween events in the USA. (Photo by Eduardo Munoz Alvarez/Getty Images)Photo by: Eduardo Munoz Alvarez Tompkins Square Halloween Dog Parade in New York City NEW YORK, NY - OCTOBER 21: A dog in costume attends the 27th Annual Tompkins Square Halloween Dog Parade in Tompkins Square Park on October 21, 2017 in New York City. More than 500 animals wear costumes to what is known as one of the largest dog Halloween events in the USA. (Photo by Eduardo Munoz Alvarez/Getty Images)Photo by: Eduardo Munoz Alvarez Tompkins Square Halloween Dog Parade in New York City NEW YORK, NY - OCTOBER 21: A dog in costume attends the 27th Annual Tompkins Square Halloween Dog Parade in Tompkins Square Park on October 21, 2017 in New York City. More than 500 animals wear costumes to what is known as one of the largest dog Halloween events in the USA. (Photo by Eduardo Munoz Alvarez/Getty Images)Photo by: Eduardo Munoz Alvarez