Temporary public art initiatives are popular nationally and internationally contributing to city revitalization and economic development.  They add whimsy and beauty to a public space while engaging viewers to think about their surroundings in fresh ways. Because temporary installations generally cost less and do not require long-term commitments or a lengthy approval process, the projects tend to be more provocative and encourage public dialogue and street activity. In spite of the ephemeral nature of the installations, they typically leave lasting impressions.