Tourism Business as the World’s Largest Industry and Employer

Literary tourism is a type of cultural tourism that deals with places and events from fictional texts as well as the lives of their authors. This could include following the route a fictional character charts in a novel, visiting particular settings from a story or tracking down the haunts of a novelist.
Literary tourists are specifically interested in how places have influenced writing and at the same time how writing has created place. In order to become a literary tourist you only need a novel and an inquisitive mind-set; however, there are literary guides, literary maps, and literary tours to help you on your way.
Garden tourism is a type of niche tourism involving visits or travel to botanical gardens and places which are significant in the history of gardening. Garden tourists often travel individually in countries with which they are familiar but often prefer to join organized garden tours in countries where they might experience difficulties with language, travel or finding accommodation in the vicinity of the garden.
The list of famous gardens which attract garden tourists from afar includes: Sissinghurst Castle Garden and Stourhead in England, Versailles and Giverny in France, Keukenhof in Holland, Villa d'Este and Villa Lante in Italy, Alhambra in Spain, Longwood Gardens and Filoli in the USA, Taj Mahal in India, Ryōan-ji in Japan. In the year 2000 the Alhambra and the Taj Mahal both received over 2 million visitors. This poses problems for the landscape manager.
Michel de Montaigne was one of the earliest garden tourists to record his impressions of gardens (1580). At the start of the twenty-first century Britain had the largest number of gardens open to the public for tourist visits: over 3,500 gardens are listed in Gardens of England and Wales Open for Charity (the 'Yellow Book').
Culinary tourism is valued by tourism industry professionals as one of the most popular niches in the world's tourism industry. Culinary tourism is defined as the pursuit of unique and memorable eating and drinking experiences, according to the International Culinary Tourism Association. Culinary tourism differs from agritourism in that culinary tourism is considered a subset of cultural tourism (cuisine is a manifestation of culture) whereas agritourism is considered a subset of rural tourism. Culinary tourism and agritourism are linked, as the seeds of cuisine can be found in agriculture.
Culinary tourism is not just experiences of the highest caliber - that would be gourmet tourism. This is perhaps best illustrated by the notion that culinary tourism is about what is unique and memorable, not what is necessarily pretentious and exclusive. Similarly, wine tourism and beer tourism are also regarded as subsets of culinary tourism.