The annual butter cow display blasted off Tuesday at the Ohio State Fair. This year's theme pays tribute to the 50th anniversary of the Apollo 11 moon landing.

COLUMBUS, Ohio -- The annual butter cow display blasted off Tuesday at the Ohio State Fair.

This year's theme pays tribute to the 50th anniversary of the Apollo 11 moon landing.

The butter display captures historic moments from the July 1969 mission when astronauts first landed on the moon and took steps on its surface.

A full-scale sculpture of Ohio native Neil Armstrong standing next to the lunar module Eagle and saluting the American flag is among the iconic images recreated in butter.

The display also features a butter sculpture of the entire spacecraft crew: commander Neil Armstrong, lunar module pilot Buzz Aldrin and command module pilot Michael Collins.

Next to the astronauts stand the traditional butter cow and calf.

Fair officials say that the sculptures are formed from about 2,200 pounds of butter, donated in part by Dairy Farmers of America. It took 500 hours to complete the display.