Here is a collection of images of the world's leaders through the years who used trains and their tracks to connect with people and to move through the landscape in ways seen as appealingly, and politically, accessible.
Mahatma Gandhi disembarks from a train in Bombay for talks with Mohammad Ali Jinnah. (AP Photo)
Queen Elizabeth II is given a tour of the carriage of a parked train at the Baker Street underground station in London, for a visit to mark the 150th anniversary of the London Underground. (AP Photo/Chris Radburn, Pool)
Republican presidential candidate Ronald Reagan shakes hands with a commuter aboard a train to New York's Grand Central Station. (AP Photo/Ron Frehm)
German Chancellor Adolf Hitler gives Italian dictator Benito Mussolini a left-handed shake as he leaves by train after a conference in Germany. At right is Foreign Minister Joachim Von Ribbentrop and Reich Marshal Herman Goering, second right. (AP Photo)
Israeli President Moshe Katsav, right, participates in a memorial ceremony to honor the Jews who were deported from Germany during the Nazi era, at Berlin-Grunewald's train track 17 in Berlin. (AP Photo/Franka Bruns)
North Korean government, leader Kim Jong Un, center, waves as he was given a send-off at a train station in Beijing. (Korean Central News Agency/Korea News Service via AP, File)
President Vladimir Putin prepares to leave a subway car in St. Petersburg, Russia. Putin arrived in St. Petersburg to take part in a ceremony to open train service at one of the subway lines that had been restored. (AP Photo/Dmitry Lovetsky)
Former President Clinton is joined by his wife, Hillary, and daughter, Chelsea, as they wave to the crowd just before departing to the Democratic National Convention in Chicago. (AP Photo/Greg Gibson)