Arenas

Construction of a multi-use event arena in Rio Rancho, New Mexico, was supposed to be a boon for the city. But when events dried up, costs mounted and a big building became a big mistake.

Architects in Baltimore are arguing that the city should build its new arena near its other sports facilities, freeing up the old location for redevelopment that can help revitalize its downtown.

Taxpayers typically contribute more than 50 percent of the cost of a new stadium or arena these days, but what are they getting for their money?