When summer unfurls its wings and flaps languidly through the air, commandeer a helicopter and pursue it into the sky, harpoon in hand, with today's Groupon: for $140, you get a 15-minute helicopter tour of the Baltimore area (a $566.67 value) from Baltimore Helicopter Services on South Clinton Street.

Baltimore Helicopter Services grants avian-aspirers an aerial view of Baltimore's best sites, including the Orioles' and Ravens' stadiums, Inner Harbor, the National Aquarium, and more during the approximately 15-minute city tour. As a skilled guide navigates through Baltimore's vast air meadow, passengers will sink into executive-class leather seats while glancing at clouds that may or may not resemble Ron Howard eating a donut with a spoon. In addition, you'll check out landlocked neighborhoodies in Canton and Federal Hill. Flight-goers will also be able to listen to the pilots as they navigate the aerial terrain.

The tours take place from 6 p.m. to 8 p.m. every Friday and Saturday evening (weather permitting), and four to five passengers are booked per flight. You may plan ahead and share the propelled carriage with friends, or, if you choose to fly solo, Baltimore Helicopter Services will place you with three pre-friends.