OneAmerica Tower

Downtown Indianapolis is a neighborhood area and the central business district of Indianapolis, Indiana, United States. Downtown is bordered by Interstate 65, Interstate 70, and the White River, and is situated near the geographic center of Marion County. Downtown has grown from the original 1821 town plat—often referred to as the Mile Square—to encompass a broader geographic area of central Indianapolis, containing several smaller historic neighborhoods. Downtown Indianapolis is the cultural, political, and economic center of the Indianapolis metropolitan area. Downtown Indianapolis anchors the city's burgeoning tourism and hospitality sector, home to nearly 8,000 hotel rooms and several of the city's major sporting and event facilities. Downtown contains numerous historic districts and properties, most of the city's memorials and monuments, performing arts venues, and museums. Since its founding in 1820, the seats of Indianapolis's local administration and Indiana's state government have been located Downtown. Downtown Indianapolis is also home to the highest density of commercial office space and employment in the state of Indiana.

Capital Center South Tower is a high-rise office building located at 201 North Illinois Street in Indianapolis, Indiana. It was completed in 1987 and is 22 stories tall.

The Indianapolis Traction Terminal was a major interurban train station in downtown Indianapolis, Indiana. It was the largest interurban station in the world and at its peak handled 500 trains per day and seven million passengers per year. The station opened in 1904 and remained in use until 1941, when interurban operation ended. It continued to serve as a bus station until 1968 and was demolished in 1972. The Hilton Indianapolis now stands at its location.

The Hilton Indianapolis Hotel & Suites is a hotel in Indianapolis, Indiana. The structure was completed as an office building in 1971 and converted to a hotel in 2000. It has 18 floors with a total of 332 rooms. The Hilton was formerly the tallest hotel in the city; the JW Marriott Indianapolis surpassed it when it was completed in 2011.

Market Tower is a high-rise office building located at the northeast corner of Illinois and Market streets in Indianapolis, Indiana, United States. At the time of its completion in 1988, Market Tower was the largest privately financed speculative office project developed in the city. It is the fourth-tallest building in Indianapolis and the fifth-tallest building in Indiana. Market Tower is the second-tallest reinforced concrete building in the state, after the Indiana Michigan Power Center in Fort Wayne, Indiana.

The 220 Meridian, formerly known as the AT&T 220 Building, is a 23-floor high rise located at 220 North Meridian Street in Indianapolis, Indiana. It was completed in 1974 when it served as the headquarters of Indiana Bell.It is connected with the 22-story AT&T Building, located just to the north at 240 North Meridian Street, and both buildings housed the Indiana headquarters for AT&T. The AT&T 220 Building was sold to Cleveland-based Geis Properties in 2013 for $16.5 million. In 2017, the building was purchased Keystone Realty Group which has proposed spending $80 million to convert it to mixed-use with restaurants, office space, apartments, and parking.

English's Opera House, also known as English's Theatre, was a theatre located in downtown Indianapolis, Indiana at Monument Circle. It was built by William Hayden English and opened in 1880. It was modeled after the Grand Opera House in Manhattan. It was demolished in 1949. The theatre was host to the 1884 Greenback National Convention.

The AT&T Building is a high rise located at 240 North Meridian Street in Indianapolis, Indiana. It was opened in 1932 and is 22 stories tall. It is primarily used for office space and is the headquarters for AT&T in Indiana. The AT&T Building is connected to 220 Meridian (formerly known as the AT&T 220 Building), located directly south. The building has been expanded and has achieved its present form only after a few iterations.

Spink Arms Hotel, also known as the Lionel Artis Center, is a historic hotel building located at Indianapolis, Indiana. It was built in 1919, and consists of two eight-story, brick towers linked by a one-story connector. It is in the Tudor Revival style and features twin four-story oriel windows on each tower and a crenellated parapet. Behind the building is a four-story parking garage constructed in 1922.: 5 It was listed on the National Register of Historic Places in 2001.

300 North Meridian is a high rise in Indianapolis, Indiana. Construction started in 1987, financed by Browning Investments. The architects, Haldeman Miller Bregman Hamann (now BOKA Powell), built the outside with brownish-reddish granite and black windows, and capped the skyscraper with a copper-colored dome. Only the eastern side rises to the full height of the building; the northern and southern sides rise in a staircase shape toward the east. The architects intended 300 North Meridian's design to echo the adjacent Chamber of Commerce building. It was completed in 1989 and is currently the fifth-tallest building in the city. 300 North Meridian is primarily used for office space, although 9 of its floors are occupied by a parking garage. Of the building's 509,582 square feet of space, only 347,551 square feet are usable by offices. As of February 2014, 17.5% of the usable office space is vacant, and the building is owned by REI Real Estate Services. The building was valued at $39 million in 2013.One of the main tenants of 300 North Meridian is the law firm Faegre Drinker Biddle & Reath, known as Baker & Daniels at the time of construction. The group has a lobby on the 25th floor.

Test Building, also known as the Circle Motor Inn, is a historic commercial building in Indianapolis, Indiana. It was built in 1925, and is a nine-story, reinforced concrete structure with 12-inch thick brick and clay tile curtain walls. It is faced with Indiana limestone and has a three-story brick penthouse and two-level basement. The mixed-use building housed the city's earliest large parking garages.: 2–5 It was listed on the National Register of Historic Places in 1983. It is in the Washington Street-Monument Circle Historic District.

Rink's Womens Apparel Store, also known as the Rink Building, is a historic commercial building located at Indianapolis, Indiana. It was built in 1910, and is a six-story, rectangular, steel frame building sheathed in clay tile and masonry. It measures approximately 120 feet by 70 feet and is four bays wide by seven long. It features large Chicago style window openings. The building housed the Rink's Womens Apparel Store, in operation until 1939.: 2–4 It was listed on the National Register of Historic Places in 1984. It is located in the Washington Street-Monument Circle Historic District.