Organ Crawl

An organ crawl is a tour of several pipe organs at different locations in an area, usually taken by a group of enthusiasts.
It may include short concerts or opportunities to play the organs at each location, commentary on them from their organists or other experts, and so on.
Photo shows the Boardwalk Hall Auditorium Organ in the main auditorium of Boardwalk Hall (formerly the Atlantic City Convention Hall) in Atlantic City, New Jersey.
With 33,114 pipes, this instrument is accepted as the largest pipe organ ever constructed, the largest and loudest musical instrument ever constructed, and is one of only 2 pipe organs in the world having a full length 64-foot stop which generates a frequency of 8Hz on low C.