People crowd into a subway car as they wait for departure from a station during rush hour in Buenos Aires, Argentina, Sept. 17, 2014.
Whether by bus, train, boat or bicycle, here is a look at how people around the world get to work.
Cable cars move in the fog as people commute between the capital of La Paz with El Alto, Bolivia, Sept. 18, 2014.
The system is the world’s highest cable car system, and transports thousands of passengers, about 4,000 meters above sea level.
Commuters stand in an open doorway of a suburban train during the morning rush hour in Kolkata, Sept. 22, 2014.
A young couple, unable to find seats together in the metro, hold hands across the aisle at the start of evening rush hour in Mexico City, Sept. 18, 2014.
Commuters get off a motorized boat during rush hour on a pier at the Saen Saeb canal in Bangkok, Thailand, Sept. 15, 2014.
This long exposure picture shows vehicles on roads during rush hour on the eve of the National Day holidays in Shanghai, Sept. 30, 2014.
Commuters use a bicycle taxi in Havana, Cuba, Sept. 19, 2014.
New York City
A woman is seen in silhouette walking through Grand Central Station in New York, Sept. 25, 2014.
Thousands of motor scooters wait at a stoplight during the morning commute in Taipei, Taiwan, Sept. 4, 2014.
There are 15.09 million motorcycles in Taiwan, or 67.6 for every 100 people according to statistics from Taiwan's 2013 official Directorate General of Budget, Accounting and Statistics.
Commuters walk to the Rodoviaria bus station in Brasilia, Brazil, Sept. 18, 2014.
A man and woman ride a cable car that links downtown La Paz with El Alto, Bolivia, Sept. 17, 2014.
Commuters step into a tramway in Donetsk, eastern Ukraine, Sept. 16, 2014.
United Arab Emirates
Passengers look at the Sheikh Zayed highway towers from the front window of a remote control metro during afternoon rush hour in Dubai, United Arab Emirates, Sept. 17, 2014.
The 5-year-old Dubai metro has grown from serving 60,000 passengers daily in 2009 to 500,000 commuters.
A passenger sleeps while holding on to a handrail inside the subway during early morning rush hour in Mexico City, Sept. 22, 2014.
A traffic policewoman directs commuters during the evening rush hour in Lima, Peru, Sept. 17, 2014.
Commuters wait for a bus in Quito, Ecuador, Sept. 18, 2014.
A woman puts on her makeup as she rides the subway in Buenos Aires, Argentina, Sept. 17, 2014.
People line up to take a bus during the evening rush hour in Villa Maria del Triunfo, on the outskirts of Lima, Peru, Sept. 22, 2014.
The headlights and taillights of moving cars streak past stationary cars waiting for their turn at an intersection during the evening rush hour in Sydney, Sept. 17, 2014.
A dog runs between traffic towards his owner as they cross the street in Havana, Cuba, Sept. 19, 2014.
A boy sleeps while commuting during early morning rush hour in Lima, Peru, Sept. 17, 2014.
A man closes his eyes as he stands with other commuters in a crowded metro car during rush hour in Rio de Janeiro, Brazil, Sept. 17, 2014.
People sleep on the subway floor during early morning rush hour in Mexico City, Sept. 22, 2014.
Commuters get off a free ferry connecting parts of Amsterdam, Sept. 8, 2014.
Passengers wait for a subway train during early morning rush hour in Mexico City, Sept. 22, 2014.
Commuters take a bus home after work during rush hour in downtown Rio de Janeiro, Brazil, Sept. 17, 2014.
People cross the road in the high density suburbs of Mbare in Harare, Zimbabwe, Sept. 18, 2014.