Postcard from the USA!

Today I got a nice postcard from the USA! The card features the Tomb of the Unknowns, which is located in Arlington National Cemetery in Virginia. It was first unveiled in 1921 and is dedicated to American military members whose remains have not been identified. It is continuously guard by the Tomb Guards, also known as Sentinels, who are members of the US Army. When the guards are changed, a popular sequence called the Changing of the Guards commences. Thanks Jaelen!