Gillepsies, the Garden's layout is dominated with low-slung glass walls and lookout platforms that can be turned into concert venues, thus giving a 21st-century touch without harming the area's historical fabric. The space contains elevated terraces that attempt to revive sights of ancient Mediterranean gardens. During the tourism season, the place hosts several open-air concerts and plays. Both tourists and locals are drawn to the popular international concerts that the place hosts as part of the World Music Day. Sea Corniche Once the Zaitounay Bay, the Corniche promenade, the Eastern Marina, and the Beirut Port First Basin promenade are completed, the city center will provide an uninterrupted corniche along Beirut's shoreline. This new addition will be four times the area of the existing Corniche Beirut. The new Sea Corniche will consist of a three-decked promenade, and will be more than long and between 110 and 45 meters in width. The master plan for the Corniche intends to transform it into a socially active pedestrian arena with distributed "activity spots" for sports, recreation and children activities. Castle Square Belvedere Park Situated in the central business district of Beirut, "Castle Square Belvedere Park" is a public plaza adjacent to the oldest archaeological site in the city, the "Tell Area". The site, which includes findings that are over 6,000 years old, is the location of the ancient city of Berytus, the Roman origins of modern-day Beirut. The design of the square was conceived by the Boston-based architecture and urban design firm Machado and Silvetti in 2005. The centerpiece of the square is the "Beirut Citadel" which, although significantly reduced in size, still houses visible ruins including portions of a medieval castle and an Ottoman barrack. Water features and fountains were created on either side of the citadel to highlight the locations of both the ancient harbor and the medieval moat. Imam Ouzai Square The Imam Ouzai Square is part of the Beirut Souks project in the BCD. The square marks the main entrance to the souks from Rue Weygand. The square's floor is tiled with black basalt stone including an oval with outlines of the old Roman pavement, and it hosts an old olive tree in its center. Architecturally speaking, the design of the square integrates several features from its old heritage as well as several elements of modernity. A cupola-topped prayer hall to the left creates a virtual entrance to the square