hey guys can u pls help me, i'm writing an essay about city of arts and sciences (complex in Valencia, Spain) u can search it up if u want. The question is what impressed u from that complex? try to make it as long as possible. thank you in advance.​

The City of Arts and Sciences is situated at the southeast end of the former riverbed of the river Turia, which was drained and rerouted after a catastrophic flood in 1957. The old riverbed was turned into a picturesque sunken park.

Designed by Santiago Calatrava and Félix Candela, the project began the first stages of construction in July 1996, and was inaugurated on 16 April 1998 with the opening of L'Hemisfèric. The last major component of the City of Arts and Sciences, Palau de les Arts Reina Sofia, was inaugurated on 9 October 2005, Valencian Community Day. The most recent building in the complex, L'Àgora, was opened in 2009.[1]

Originally budgeted at €300 million in 1991 for three structures, it has expanded about three times the initial expected cost.[2]The Hemisfèric, also known as the planetarium or the "eye of knowledge", is the centerpiece of the City of Arts and Sciences. It was the first building completed in 1998. Its design resembles an eyelid that opens to access the surrounding water pool. The bottom of the pool is glass, creating the illusion of the eye as a whole. This planetarium is a half-sphere in a concrete structure 110 meters long and 55.5 meters wide. The shutter is built of elongated aluminum awnings that fold upward collectively to form a brise soleil roof that opens along the curved axis of the eye. It opens to reveal the dome, the "iris" of the eye, which is the planetarium or Ominax theater. The structure is divided in half by a set of stairs that descend into the vaulted concrete lobby. The underground spaces are illuminated with the use of translucent glass panels within the walking path. The transparent roof is supported by concrete arches that connect to the sunken gallery. There is a remarkable echo in the building and if two people stand at the two opposite pillars inside of the eye they can speak with each other.occupies around 40,000 m² on three floors. Much of the ground floor is taken up by a basketball court sponsored by a local team and various companies. The building has three floors, of which 26,000 square meters is used for exhibitions. The first floor has a view of the Turia Garden that surrounds it, which is over 13,500 square meters of water. The second floor hosts "The Legacy of Science" exhibition by researchers Santiago Ramón y Cajal and Severo Ochoa y Jean Dausset. The third floor is known as the "Chromosome Forest" and shows the sequencing of human DNA. Also on this floor are the "Zero Gravity," "Space Academy" and "Marvel Superheroes" exhibitions. The building's architecture is known for its geometry, structure, use of materials, and its design around nature. The building is about 42,000 square meters, of which 26,000 square meters is exhibition space, making it the largest in Spain. It has 20,000 square meters of glass, 4,000 panes, 58,000 m³ of concrete, and 14.000 tons of steel. The building stands 220 meters long, 80 meters wide and 55 meters high.