Bedrock promotes 'pop-up experiences' at ailing Tower City mall Michelle Jarboe/Crain's Cleveland Business Traffic was light last week at the Avenue at Tower City in downtown Cleveland, where many stores are vacant and the fountains remain dry. Bedrock, the Detroit-based owner of the shopping mall at Tower City, is marketing "pop-up experiences" at the vacancy-plagued property. A flyer distributed to retail brokers this month promotes leasing opportunities tied to the upcoming Rock & Roll Hall of Fame inductions, in October, and the NBA All-Star Game, set for February. Both events will take place at Rocket Mortgage FieldHouse, which is linked to the mall by an indoor walkway.