July 4, 1906, an iron arch was added by the city to welcome travelers. According to Mayor Robert Speer the arch was meant “to stand for the ages as an expression of the love, good wishes, and kind feeling of the citizens to the stranger who enters our gates”. The arch originally featured the word “Welcome” on both sides. In 1908 the 17th Street side was changed to “Mizpah”, a Hebrew word for “Watchtower”. Taken from Genesis 31:19, which says “May the Lord keep watch between you and me when we are away from each other. “. Over time the word has become to mean an emotional bond between people who are separated. It was used as a farewell or goodbye to people leaving Denver through the Union Depot. Sometime in the 1920s over 200 light bulbs were added to light the arch with electric lights. After years of not being well maintained, it was eventually removed because it was in need of repair and had become a hazard to traffic. The Welcome Arch was dismantled at the city’s expense on December 7, 1931.