Common Street District

The Amelia Stewart House, also known as the Carol O. Wilkinson House and William Hallett House, is a historic residence in Mobile, Alabama, United States. It was built in 1835, with a significant Greek Revival style addition to the front built in 1871. The house was placed on the National Register of Historic Places on May 29, 1992, based on its architectural significance.

The Protestant Children's Home, also known as the Protestant Orphans' Asylum, is a historic orphanage building in Mobile, Alabama, United States. It was placed on the National Register of Historic Places on June 18, 1973. In 2015 the building was leased to the Infant Mystics society which began using it as a meeting lodge, renaming the place Cotton Hall.

Saint Joseph's Roman Catholic Church was a historic Roman Catholic church building in Mobile, Alabama, United States. It served as the parish church for St. Joseph's Parish in the Roman Catholic Archdiocese of Mobile. St. Joseph's Parish was the third oldest in Mobile. It was formed in 1857 to serve Catholics too far removed from the downtown Cathedral and the Church of St. Vincent de Paul in South Mobile. St. Joseph's Parish was approaching its 160th year of service before its closure in 2018.

Mobile City Hospital, also known as Old Mobile General Hospital, is a historic Greek Revival hospital building in Mobile, Alabama, United States. It was built in 1830 by Thomas S. James and served as a hospital for the city of Mobile from 1831 until 1966. It was administered for the city by the Sisters of Charity throughout a large part of its history. Residents of the city were treated here during epidemics of yellow fever and during the American Civil War. It was converted to office space after 1966. It was added to the National Register of Historic Places on February 26, 1970. The building is adjacent to the old U.S. Marine Hospital, which is also on the National Register.

The Duffie Oak is a historic Southern live oak in Mobile, Alabama. Being approximately 300 years old, it is considered by scholars to be the oldest living landmark in the city. It was originally known as the Seven Sisters Oak for its number of large limbs. It was later renamed for former mayor of Mobile George A. Duffee, who lived nearby.The tree has a circumference at breast height (CBH) of 30 feet 11 inches (9.42 m), a height of 48 feet (15 m) and a limb spread of 126 feet (38 m). It was recognized by the National Arborist Association in 1977. The Alabama Forestry Commission recognized it as a famous and historic tree in 2003.

The Tschiener House, also known as the Dumas School, was a historic residence in Mobile, Alabama, United States. The Carpenter Gothic structure was built in 1866. It was placed on the National Register of Historic Places on January 18, 1982. It was later destroyed by fire. One former outbuilding remains at the site.

The Oakleigh Garden Historic District is a historic district in Mobile, Alabama, United States. It was placed on the National Register of Historic Places on 13 April 1972. It is centered on Washington Square and was originally bounded by Government, Marine, Texas, and Ann Streets. A boundary increase on 30 January 1991 increased the boundaries to Rapier Avenue, Selma, Broad, and Texas Streets. The district covers 1,453 acres (5.88 km2) and contains 288 contributing buildings. The buildings range in age from the 1820s to the 1940s with most in a variety of 19th-century architectural styles.

The Convent of Mercy, known today as the St. Francis Place Condominiums, is a small complex of historic Roman Catholic religious buildings in Mobile, Alabama, United States. It consists of two buildings, the former convent and the former school. They were added to the National Register of Historic Places on April 24, 1992 as a part of the Historic Roman Catholic Properties in Mobile Multiple Property Submission. It, along with the Convent and Academy of the Visitation, is one of two surviving historic convent complexes in Mobile.

The United States Marine Hospital, formerly known as Frank S. Keeler Memorial Hospital, is a historic Greek Revival hospital building in Mobile, Alabama, United States. Construction began in 1838 and was completed in 1842. It was designed by architect Frederick Bunnell and was operated by the Marine Hospital Service from its opening until it closed, in 1952. It treated injured Confederate and Union soldiers during the American Civil War. It shares some design features, such as its two-story colonnades, with its neighbor, the old Mobile City Hospital. The building was added to the National Register of Historic Places on June 27, 1974. The Mobile County Board of Health acquired the title to the property from the Tuberculosis Association on October 23, 1975. By 1983 the board had created an adjoining new structure to the rear of the main structure and restored the historic building. The facility was rededicated as the Major General William C. Gorgas Clinic in 1984.

The Raphael Semmes House, also known as the Horta–Semmes House, is a historic residence in Mobile, Alabama. It is best known for having been the home of Admiral Raphael Semmes, captain of the Confederate sloop-of-war CSS Alabama. The house was added to the National Register of Historic Places on February 26, 1970.

The Caldwell School is a historic former black school building in Mobile, Alabama. The school, originally named the Broad Street Academy, was the first public high school for African Americans in the city. It was founded in 1887, with William A. Caldwell serving as the first principal.The original building was torn down and replaced with the current one in 1947. Upon reopening in the new building, it served as an African American elementary school. It was called the Caldwell School in honor of its first principal from this point until closing during the 1960s.Following the closure of the school the building was purchased by Bishop State Community College, a historically African American junior college. It is currently the oldest building on the Broad Street college campus and is utilized for administrative and teaching purposes. It was added to the National Register of Historic Places on December 20, 2011.

The Boyington Oak is a historic Southern live oak in Mobile, Alabama. In a city with many live oaks that are famous for their age and size, the Boyington Oak stands out as a singular example of one famous for the folklore surrounding its origin.