The Panama Canal connects the Atlantic and Pacific Oceans across the Isthmus of Panama and drastically reduced travel times between the oceans. The United States took over construction of the canal from France in 1904 after thousands of French workers had died from disease. Building the canal involved overcoming immense challenges in draining lakes, cutting through mountainous jungle, and constructing giant locks to raise and lower ships. After 10 years of difficult construction under harsh conditions, the Panama Canal opened in 1914.