The largest collection of official fireman’s patches consists of 8,158 and belongs to Bob Brooks (USA), who has been collecting the patches since 1985. The entire collection of patches was displayed at the Albany Fire Department, Albany, Oregon, USA, on 22 June 2011. Bob Brooks served in the fire service for 35 years. A museum is currently being built by the Oregon Fire Service Museum and Learning Center to display the entire collection. All the patches come from the USA.

Roger Buckey Legried (USA) has a collection of 100,336 different hats from all over the world, as of 2 March 2010, that he has amassed since 1970. His collection has become so popular that he has had bus tours to his home. All his hats are cap shapes.

The largest collection of keychains belongs to Brent Dixon of Valdosta, Georgia, USA, with 41,418 non-duplicated key chains, which he has been collecting since 2001.

The largest collection of complete LEGO® sets in a private collection is 1,091 and belongs to Kyle Ugone (USA) in Yuma, Arizona, USA, as of 23 July 2011 . Kyle Ugone is in the Marine Corps and started his collection in 1986.

The US Library of Congress Geography and Map Division, Washington, D.C., USA has custody of the largest and most comprehensive cartographic collection in the world with collections numbering over 4.5 million maps including 60,000 atlases, 6,000 reference works, numerous globes and plastic relief models, and a large number of cartographic material in other formats, including electronic. These cartographic materials date from fourteenth century portolan charts through recent geographic information systems data sets.

The largest collection of letter openers is 5,000 letter openers and belongs to Santa Fe College Foundation (USA), in Gainesville, Florida, USA, as verified on 25 October 2012.

Harley Spiller, New-York (USA) has been collecting restaurant menus since 1981, and has accumulated 5,006 Chinese menus from all 50 U.S. states and from 80 foreign countries. They have been featured on over 45 international television shows, dozens of radio programs, and over 140 magazine and newspaper features. Right now, the Museum of Chinese in the Americas is hosting an exhibition of Harley’s collection and planning to travel the exhibition across the country. Harley has also written articles about them.

The largest collection of Mickey Mouse memorabilia consists of 6,726 items and was achieved by Janet Esteves (USA) in Celebration, Florida, USA, as of 11 November 2013.

The record for the largest collection of owls consists of 18,055 items and is owned by Dianne Turner, Wilton, Maine, USA. Dianne Turner completed her owl collection in 2002 at the age of 55. She made her own ceramics and was still firing owls in her kiln after she went blind from diabetes. The owls were painted one colour because she could not see. Dianne was known as “The Owl Lady”. She passed away in January 2003 and her family and friends applied for the Continue reading →

The largest collection of olive oil bottles consists of 2,440 and belongs to Ronald Popeil (USA) in Beverly Hills, California, USA, as of 1 October 2011.