Ancient Rome’s public tours of the Coliseum ultimately proved unpopular with visitors, as they usually ended with the tour group being forced to battle lions for the emperor’s amusement. Take a safe trip through the home of modern gladiators with today’s Groupon for tours of Sports Authority Field at Mile High from the Colorado Sports Hall of Fame. Choose between the following options:

• For $5, you get one adult ticket (a $10 value).
• For $18, you get two adult tickets and two kids’ tickets (a $36 value).<p>

Curious sports fans and architecture nuts explore the inner workings of the Broncos’ massive home stable along 75-minute walking tours. Professional guides lead the half-mile, handicap-accessible journey into gridiron sectors shrouded in mystery to outsiders, including the United Club level and private party suites, where affluent boosters watch football games while relishing caviar hot dogs and waving Fabergé foam fingers. The pigskin pilgrimage crosses fieldside for a ground-level view of the 76,000 seats and brief end-zone dance rehearsal before treating tourists to a backstage glimpse of the press center and visitors’ locker room. Expeditions also pass through the Colorado Sports Hall of Fame, whose exhibits celebrate homegrown individuals that embody athletic excellence. Such local luminaries include women’s pro-golfing great “Babe” Didrikson, heavyweight Jack Dempsey, and Broncos legend John Elway, who is forever entombed in carbonite in the Ring of Fame and only released to film weekly talk shows and anti-extraterrestrial PSAs. Tours depart hourly through December from 10 a.m.–2 p.m. on Thursday, Friday, and Saturday, except for 24 hours before home games. Winter hours begin in January.