About Adam's Mark Complex
The Sheraton Dallas Hotel, formerly known as the Adam's Mark Hotel and Southland Center, is a complex of international style skyscrapers located in the City Center District of downtown Dallas, Texas (USA). The hotel is the tallest and largest hotel in Dallas and Texas with 1,840 guest rooms and 260,000 square feet of meeting space. It has been host to pop culture conventions such as Project A-Kon and Twicon. The complex was originally designed by Welton Becket & Associates from Los Angeles for the Southland Life Insurance Company. When groundbreaking for the buildings took place in 1955 it was compared to Manhattan's Rockefeller Center, as Southland Center was the first mixed-use project in downtown containing both hotel and office space. Southland Center was the second major development in the northeast end of downtown now known as the City Center District. The original two buildings, completed in 1958, consisted of the 42 story (550ft) center tower Southland Life Building and the 28 story (353ft) south tower Sheraton Dallas Hotel. In 1980, the 31 story (448ft) North Tower was added as additional office space.