Query: What is the common name for the General Grant National Memorial?
Context: They are joined in the harbor by Governors Island National Monument, in New York. Historic sites under federal management on Manhattan Island include Castle Clinton National Monument; Federal Hall National Memorial; Theodore Roosevelt Birthplace National Historic Site; General Grant National Memorial ("Grant's Tomb"); African Burial Ground National Monument; and Hamilton Grange National Memorial. Hundreds of private properties are listed on the National Register of Historic Places or as a National Historic Landmark such as, for example, the Stonewall Inn in Greenwich Village as the catalyst of the modern gay rights movement.