Paw Paw Tunnel (C&O Canal)

Attraction

A national museum devoted entirely to self-taught 'outsider' artists -- whirligigs, a giant whirligig sculpture garden, and a mirrored mosaic facade that makes it the single quirkiest museum stop in the state.

Attraction

Housed in the 1884 Mount Clare roundhouse -- birthplace of American railroading, where the B&O's first stone was laid in 1828 -- with the country's oldest and most comprehensive collection of historic locomotives under one roof.

Food

Canal-view dining in an 1780s building at the foot of the bridge.

Culture

Army Corps museum in the 1837 canal pumphouse with the original steam engines and waterwheel.

Attraction

One of only three surviving Chesapeake Bay screw-pile 'cottage' lighthouses, moved intact to the museum's waterfront in 1975 -- visitors can climb inside a genuine 1883 hexagonal lighthouse without a boat.

Attraction

A working waterfront campus on the Miles River with the last screw-pile lighthouse on its original Bay waters (Hooper Strait Light, relocated intact) and the country's largest collection of Chesapeake Bay skipjacks and workboats.