It's the 47th annual North American Vexillological Association Convention, being held in Utah for the first time.
At first glance you may not think much of the display, but each flag has a story to tell.
"These flags flew in the Oval Office of President, Dwight D. Eisenhower," said flag owner, Chuck Douglas.
Eisenhower, the nation’s 34th president was the only one to serve under three different president's flags, including the very rare, 48 and 49 star flags.
"The 49 star, national and presidential colors were only in existence for one year, July 4th, 1959 to July 4th, 1960," said Robert Williamson, of The House of Flags Museum.
The presidential flag was first introduced by the navy in 1882, but the design we know today came in 1945.
"The Harry Truman Administration completely redesigned the president's flag, which gave us a natural colored eagle and a circle of 48 stars representing the 48 states,” said Williamson.
Those were just two of many unique flags on display at the convention.
Another one is the Mormon Battalion flag handed down through the family of Hyrum Smith, brother of the founder of the Church of Jesus Christ of Latter-day Saints, Joseph Smith.
"The family story would have it go through the Mormon Battalion from winter quarters to San Diego, up through California and back to Utah," said flag owner, E. Gary Smith.
Another touch of Utah came from our state flag. The first one patterned after the state seal approved in 1896 was also on display.
"Presented to Governor, Heber Wells, it was made the state flag or the governor's flag in 1911," said Doug Misner, with the Utah State Historical Society.
The four day convention, held at the Plaza Hotel wrapped up on Sunday.