Great Britain | World Cup | Great Depression | FIFA World Cup | World Trade Center | Alexander the Great | World Series | United Kingdom of Great Britain and Ireland | 2010 FIFA World Cup | World Bank | World Health Organization | Guinness World Records | 1978 FIFA World Cup | World Series of Poker | Allies of World War II | BBC World Service | ATP World Tour 250 series | World Heritage Site | Kingdom of Great Britain | World Boxing Association | World Boxing Council | 2006 FIFA World Cup | Great Western Railway | World Wide Web | Great Yarmouth | As the World Turns | World Trade Organization | ATP World Tour 250 Series | World Rally Championship | World Intellectual Property Organization |
Deep Valley is the setting for all the books, except for Betsy and the Great World, in which the title character travels across the Atlantic Ocean and to various countries in Europe, and Betsy's Wedding, which takes place in New York and Minneapolis.