 In March 2016, the visitor center unveiled the new location of the iconic countdown clock at the complex's entrance; previously, the clock was located with a flagpole at the press site.The clock was originally built and installed in 1969 and listed with the flagpole in the National Register of Historic Places in January 2000.In 2019, NASA celebrates the 50th anniversary of the Apollo program, and the launch of Apollo 10 on May 18.