The first state might be tiny but there's tons to do here from NASCAR to the beach.
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Guys Weekend and Mancation Ideas in Delaware:
Marshall Steam Museum at Auburn Heights Preserve - world's largest collection of steam-powered cars and other historic and antique automotive items.
Delaware Wine, Beer, and Spirits Trail - Delaware might be a small state but they love their alcohol producers and you can visit most of the top breweries, wineries, distilleries, cideries, and meaderies in the state while taking a tour on their 20-stop trail.
Dover International Speedway - Dover Speedway plays host to two NASCAR races each year on what is billed as the "World's Fastest One Mile Oval" for it's 24 degree turns and 9 degree banked straights. Unique among NASCAR race tracks is that there is actually a casino and resort attached directly to the track.
Air Mobility Command Museum - This is the world's only museum dedicated to military airlift and air refueling history. Located on Dover Air Force base, the museum includes more than 30 aircraft including a C-5A Galaxy, B-17G Flying Fortress, KC-135 Stratotanker, and a VC-9C that served top political figures including Walter Mondale, George H.W. Bush, and Al Gore.