Istanbul: Sirkeci – The Orient Express

In 1883 the era of great international express trains began with the Orient Express from Paris to Constantinople.

In earlier years, going by train between Europe and the Ottoman Empire was slow and tedious. Each country through which the traveller’s route passed had a different railroad administration, and passengers were obliged to descend from one train, walk across the border and climb into the next.
Belgian entrepreneur Georges Nagelmackers had a better idea: obtain permission to use the tracks along the route, supply luxury coaches, and just change locomotives at the border. He founded the Compagnie Internationale des Wagons-Lits et Grands Express Européens to carry out his plans.
The journey between Paris and Constantinople took several days. Passengers relaxed in their plush compartments, complete with washbasins, cabinets, other amenities, and comfortable beds. (Interestingly, sleeping cars came to be called wagon-lits in English, and sleepings in French!) Dining cars supplied all meals, and the steward brought you a cup of tea or a spot of brandy whenever required. Border formalities took place right on the train.
In fact, Nagelmackers' train was a rolling deluxe hotel, with standards of service and comfort that exceeded all but Europe's finest hotels.
The fare was extraordinarily high, but so was the status--and, because train compartments were private-- so was the opportunity for illicit romantic assignations