Global development of tourism
  pre-modern, modern, post-modern:
Discovery - Acquisition - Invention

 Modern travels - Acquisition

World tourism Feb. 2007 (.pdf) link here

 Physical acquisition: Infrastructure, security, opening up, archaeology, cathedrals to sights

 Technical acquisition: Transport and information technology

 Mental acquisition: Division of working time/space and leisure time/space, ideas of "recreation" and "self-actualization"

http://www.brightonpier.co.uk/indexflash.htm

Modern travels:

Middle classes (19th c.) and working classes (20th c.) in Europe and North America join rich travellers

Increasing impact on destinations and infrastructure

Medium-time travels (weeks or months)

Acquisition of places

Split between travelling/holidays and living/working