The square is surrounded by five major buildings built in pink and yellow tuff in the neoclassical style with extensive use of Armenian motifs.This architectural ensemble includes the Government House, the History Museum and the National Gallery, Armenia Marriott Hotel and the ministries of Foreign Affairs and Transport and Communications. The square was originally designed by Alexander Tamanian in 1924.The construction of most of the buildings was completed by the 1950s; the last building—the National Gallery—was completed in 1977.
The square consists of two sections. The oval roundabout that has a stone pattern in the center, meant to look like a traditional Armenian rug from above. The trapezoid-shaped section which contains the musical fountain in front of the History Museum and the National Gallery.The buildings around the square are made of pink and yellow tuff stones, fortified on a basalt-made ground anchor.