Valencia, Spain

Valencia is the 3rd largest city in Spain..
and home of what is attributed to be the/this Holy Grail.

This city was founded in 138 BCE, and most city attractions are found around their Historic Central Square, which was established in 14th-15th centuries. 

Valencia's new area is called "City of Arts + Sciences".
The largest aquarium in Europe is the crown jewel of the modern architecture.