Hermitage Revealed
Hermitage Revealed is a documentary film directed by Margy Kinmonth and produced by Foxtrot Films Ltd which tells the story of the State Hermitage Museum in Saint Petersburg - formerly a royal palace and now one of the largest and most visited museums in the world. Holding over 3 million objects and with more curators than any other museum, the exhibits go back to Catherine the Great. Celebrating the museum's 250th anniversary in 2014, the film shows how the collection came about, how it survived revolutionary times and what makes the Hermitage Museum unique today.
National Philatelic Collection (United States)
Established in 1886, the first piece in the National Philatelic Collection was a sheet of Confederate States stamps. The collection was subsequently expanded through the transfer of stamps from the United States Post Office Department and United States Postal Service, gifts from foreign governments, bequests from private stamp collectors, and the direct purchase of rare stamps. The National Philatelic Collection contains nearly 
six million items and approximately 4,000 specimens from the collection are on public display in the National Stamp Salon of the National Postal Museum. It is among the largest and most valuable stamp collections in the world and – according to the Smithsonian Institution – is the "largest continuously intact museum collection" on Earth. It is also the second largest collection of artifacts held by the Smithsonian Institution, after that of the National Museum of Natural History.