The series comes from the 'Current Employment Statistics (Establishment Survey)'
The source code is: CEU7071200001
Source: US. Bureau of Labor Statistics
Release: Employment Situation
US. Bureau of Labor Statistics, All Employees: Leisure and Hospitality: Museums, Historical Sites, Zoos, and Parks [CEU7071200001], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/CEU7071200001/, July 31, 2015.