Runs numer­ous riv­er cruis­es and themed archi­tec­ture walks cov­er­ing the Loop and oth­er parts of the city, with offer­ings suit­able for gen­er­al audi­ences and peo­ple with spe­cif­ic inter­ests. There are some small, infor­ma­tive exhibits inside their 224 S Michi­gan head­quar­ters and a gift shop. Walk­ing tours are usu­al­ly $15, $12 for students/seniors.