The ornamental design for a bowlingalley, as shown and described.
FIG. 1 is a top front perspective view of a bowling alley showing my new design; and,
FIG. 2 is a top rear perspective view thereof.
The top surface of the lane and approach are glossy as shown with shading and white, excluding the foul line, arrows and dots and evenly spaced longitudinally extending faint lines which are black.
The broken line showing of the gutters and outer edges of the gutters on either side of the lane and the thickness of the lane as shown in FIGS. 1 and 2 is for the purpose of illustrating environmental structure and forms no part of the claimed design.