Take a look at the Panama Canal's historic transformation

President Theodore Roosevelt at the controls of an excavating machine digging the Panama Canal in 1906.

The Panama Canal locks under construction in 1910. Each of these was 78 feet high and 36 feet wide.

The first boat to cross the Panama Canal was the SS Ancon in 1914, which carried a cargo of cement.

USS Missouri (BB-63) in the Miraflores Locks, Panama Canal, while en route from the Pacific to New York City in 1945. The beam of battleships of this era was determined by Panama Canal lock dimensions.

A view of the expansion construction of the Panama Canal.

The renovated steel rolling gate, part of the last set of locks on the Pacific side.

Part of the newly constructed Panama Canal expansion project runs to the left of the Miraflores locks along the Panama Canal.

The first rolling gate for the new locks on the Pacific side of the Panama Canal is transported on a barge with the help of two tugboats.

A cargo ship navigates through the locks prior to the grand opening.

Another cargo ship navigates through the new locks on a test of the newly expanded Panama Canal.

A woman takes a selfie as a cargo ship crosses the new Agua Clara locks, part of the Panama Canal expansion project.