Fredicksburg, Vicksburg, Sharpsburg (Antietam), Chancellorsville, Wilderness (Overland), Bull Run I & II (Manassas), Shiloh, Chickamauga, Appomattox... in no pa

Fredicksburg, Vicksburg, Sharpsburg (Antietam), Chancellorsville, Wilderness (Overland), Bull Run I & II (Manassas), Shiloh, Chickamauga, Appomattox... in no particular order ...but yeah you could spend your whole life just visiting the different sites and not see them all I reckon...