A flock of starlings flies over Lake Leman on an autumn morning in the Lavaux near Grandvaux, Switzerland October 20, 2016. (Photo by Denis Balibouse/Reuters)

Two friends take a quick selfie during the Grand National Festival at Aintree Racecourse on April 6, 2017 in Liverpool, England. (Photo by WENN)

A couple walk in the Retiro park in Madrid on November 17, 2020 as a thick fog falls on the Spanish capital. (Photo by Gabriel Bouys/AFP Photo)

A young man leaps across stellae at the Memorial to the Murdered Jews of Europe, also called the Holocaust Memorial, on January 26, 2012 in Berlin, Germany. (Photo by Sean Gallup/Getty Images)

A reveler strikes a pose during an unofficial carnival block party referred to as “blocos”, in Rio de Janeiro, Brazil, Saturday, February 26, 2022. City Hall banned all blocos, the tightly packed street parties attended by those who cannot or don't want to buy pricey tickets for the official parade at the Sambadrome, due to a wave of the Omicron variant. (Photo by Silvia Izquierdo/AP Photo)

There are many types of collections. Some are formed by purposefully collecting certain objects, such as stamps or coins. However, some collections are only a byproduct of an obsession, a quirk of mind. For example, Paul Brockmann got into the habit of buying his girlfriend and later his wife a dress every time they went ballroom dancing. It might seem excessive to some, but it was his way of showing his affection. Overtime, this collection grew to be enormous, counting 55,000 dresses in total. Basic math tells us that either they went ballroom dancing three times per day for every day of their lives, or he bought them in huge bundles every time.