This course contains every Russian noun I have found that has a 2nd prepositional (2nd locative) form. I made the course because I could not find a complete list of nouns that take this form of the prepositional case after в and на. Most of these words require 2nd prepositional after these prepositions, but, contrary to what one can find in many Russian grammar books in English, some are optional and some occur only in idiomatic phrases or proverbs.
My primary source for the entries is Зализняк А.А. Грамматический словарь русского языка Словоизменение (1980) (Grammatical Dictionary of Russian Language Inflection by A.A. Zaliznyak). The secondary sources are The New Penguin Russian Course, the English and Russian Wiktionaries, Академик at dic.academic.ru, and various other websites. Yes, I actually went through Грамматический словарь русского языка Словоизменение line-by-line. Crazy, I know.
At this point the course contains 175 nouns that take 2nd prepositional case: 138 masculine, 35 feminine, and 2 neuter. The course also includes the idiomatic phrases and proverbs I found that use this case. All entries include sound, primarily from Forvo with longer phrases and word pairs from Google Translate.
Please let me know of any errors you find and any words that should be added. There must be more place-names. I only have 4 at this time: Клин, Крым, Дон, Шарью́, and some derivatives of these.
I also have the course Russian Nouns: 2nd Genitive (Partitive) http://www.memrise.com/course/1200644/russian-nouns-2nd-genitive-partitive/