David plans to travel.Naturalis Biodiversity Center (https://www.naturalis.nl/en)List of oldest universities in continuous operation - Wikipedia (https://en.wikipedia.org/wiki/List_of_oldest_universities_in_continuous_operation)The Feather Heist - This American Life (https://www.thisamericanlife.org/654/the-feather-heist)The Man Who Stole Bird Feathers (Published 2018) (https://www.nytimes.com/2018/06/01/books/review/kirk-wallace-johnson-feather-thief.html)Baden-Powell House - Wikipedia (https://en.wikipedia.org/wiki/Baden-Powell_House)Oostvaardersplassen - Wikipedia (https://en.wikipedia.org/wiki/Oostvaardersplassen)London (https://staygenerator.com/hostels/london?lang=en-GB)Clink Hostels (https://www.clinkhostels.com/)