After World War II all tourist organizations were nationalized by the new communist government. The Polish Tatra Society and Polish Sightseeing Society were combined into Polish Tourism-Sightseeing Society (PTTK) and most of the tourist infrastructure was handed over to the newly created Workers Vacations Fund (FWP). Tourism was limited to the Comecon countries. This was the era of governmentally-founded tourism, characterised by mass but low-standard tourism. A typical sight was a holiday campground with small bungalows managed by one of the state-owned companies. Holidays for children and teenagers were organized by Juventur. After the fall of communism much of the infrastructure was privatized, although many company-owned resorts were downgraded because of their unprofitability. The early 1990s saw the foundation of many new tour operators. Some of them prevailed and strengthened their position on the market, being able to compete with multinational tour operators like TUI, or Neckermann und Reisen with branches in Poland.