I guess these are the results of explosives testing.

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Bengies Drive-In Theater (9.32 mi / 15.00 km)
Ripken Staduim (11.74 mi / 18.89 km)
Sparrows Point steel mill and shipyard (16.33 mi / 26.29 km)
Fort McHenry (19.79 mi / 31.84 km)
Baltimore Public Works Museum (20.51 mi / 33.01 km)
Pier Six Concert Pavilion (20.58 mi / 33.12 km)
Inner Harbor (20.76 mi / 33.41 km)
Baltimore City Hall (20.78 mi / 33.44 km)
Federal Hill Park (20.86 mi / 33.57 km)
Battle Monument (20.87 mi / 33.59 km)

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