There’s a theme for every kind of tour, and a range of ways to tour, with Denver History Tours. There are haunted-house tours, a visit to historic Littleton, and a look back at the seamy side of the city when bordellos and saloons thrived. Many of these are guided walking tours that usually last about two hours.
There are also bus tours that can take an entire day and go well beyond the downtown environs to everywhere from local infill projects to Victorian towns in the foothills. Prices vary. Call ahead to make reservations.