Big Red Pedal Tours, Philadelphia

Though a cyclist traversing a city's streets is a common sight, 15 cyclists pedaling on one bike is not. That's where Big Red Pedal Tours comes in. The earth-friendly company swaps gas-fueled vehicles for its people-powered pedicycle, an open-air apparatus that passengers pedal through the streets of Philadelphia. Tour guides, who double as bike drivers, narrate the jaunts, sharing historical facts about the City of Brotherly Love and its landmarks. The guides also helm bouts of revelry on pub pedal tours, which acquaint cyclists with four of Philadelphia's renowned watering holes.