Wanderlust
Wanderlust is a strong desire  to wander or travel and explore the world.

Etymology
The first documented use of the term in English occurred in 1902 as a reflection of what was then seen as a characteristically German predilection for wandering that may be traced back to German Romanticism and the German system of apprenticeship (the journeyman), as well as the custom of adolescent wanderings in search of unity with nature.The term originates from the German words wandern ('to hike') and Lust ('desire'), literally translated as 'enjoyment of hiking', although it is commonly described as 'enjoyment of strolling, roaming about, or wandering'.In recent years, the word Wanderlust is less commonly used in German, having been largely supplanted in the sense of 'desire to travel' by Fernweh ('a longing for far-away places'), coined as an antonym to Heimweh, 'homesickness'.

Sociology
Robert E. Park in the early twentieth century saw wanderlust as in opposition to the values of status and organisation, while postmodernism would by contrast see it largely as playfully empowering.In post-Enlightenment Europe, upper-class bachelors were encouraged to embark upon a Bildungsreise (roughly, 'cultural education journey'), often sightseeing trips to Italy or France.
Among tourists, sociologists distinguish sunlust from wanderlust as motivating forces – the former primarily seeking relaxation, the latter engagement with different cultural experiences.

Psychology
Wanderlust may reflect an intense urge for self-development by experiencing the unknown, confronting unforeseen challenges, getting to know unfamiliar cultures, ways of life and behaviours or may be driven by the desire to escape and leave behind depressive feelings of guilt, and has been linked to bipolar disorder in the periodicity of the attacks.In adolescence, dissatisfaction with the restrictions of home and locality may also fuel the desire to travel.

See also
References
Further reading
Rebecca Solnit, Wanderlust: A History of Walking (2009)
Wolfgang Schivelbusch, The Railway Journey (1980)
S. D. Ezrahi, Booking Passage (2000)