Sierra's contribution was not limited to the "7" sculpture, as his second artwork in Qatar is the "East-West/West-East" sculpture in the Brouq nature reserve near the Zekreet area. This land art, which was unveiled on April 8, 2014, extends over an area of more than a kilometer, crossing the peninsula of the Brouq natural reserve and reaching the waters in the Gulf. The sculpture consists of four symmetrical steel plates installed inside a natural corridor made up of gypsum curves. The length of each plate ranges between 14.6 and 16.7 meters and is installed to be at the same level as each other. The artwork highlights the many uses of iron, the mention of iron in the Holy Qur'an, as well as dialogue between the East and the West Another notable artwork is Ugo Rondinone's "Doha Mountains" displayed near Ras Abu Aboud Beach (974 Beach). The artwork includes geological formations and abstract structures, which consist of vertically stacked rocks painted with different color schemes. The idea of the artwork is inspired by the art of meditation by balancing rocks, which has existed in many cultures for thousands of years as well as from a natural phenomenon called "Hoodoo" formed in nature as a result of erosion. Pouce (Thumb) by Cesar Baldaccini marks another highlight of Qatar's public art, one of the artist's most famous works. QM placed the landmark in the heart of the city of Doha Souq Waqif. It represents the Souq's authenticity and modernity and has a notable presence due to its size and shiny design. Source: Qatar News Agency