Directions: Walk towards Brodhead Ave. At the intersection, cross to the other side of 3rd St. Walk theway you came towards New Street. You will see a large concrete structure. This is the next stop.  Title: The Grotto Artist: Gregory Warmack A.K.A "Mr. Imagination" Date Created: 2002 Medium: Concrete and mixed media Location: 25 W. 3rd Street, Bethlehem PA 18015 Artist Gregory Warmack "Mr. Imagination" designed and created The Grotto a concrete bus shelter encrusted with a myriad of odd baubles such as shells, bottle caps, buttons, and pebbles.  Mr. Imagination worked with a group of local SouthSide youths to bring the structure to fruition. The young artists were part of a  Pennsylvania Career Link program that focused on helping youth  build job skills. For the group, the goal of the project was learning how to take initiative and work as a team to complete the project from start to finish.  Within the shelter, you will see imagery memorializing September 11, 2001, including an American flag and a depiction of The Statue of Liberty.