Collectible coins, particularly in the context of the United States, include various types such as modern commemorative coins, which celebrate significant aspects of American history or culture. The 2014 Twenty Dollars gold coin is an example of a modern commemorative issue, often featuring intricate designs that honor specific events, people, or milestones. These coins are typically produced in limited quantities, making them appealing to collectors and investors alike. The United States Mint often releases these coins as part of a broader initiative to promote numismatics and celebrate national heritage.