in ToulouseToulouse has become a center of aviation and spaceflight in the past 20 years. More than 35,000 of the city's 400,000 citizens work in the civil aviation or space industries; Airbus / EADS is the largest employer in the region. The city has remained relatively unchanged despite the economic boom.The city at the '''Garonne''' river is located on the site of an ancient Roman settlement; even today many of the smaller streets follow their Roman counterparts and many of the red brick buildings are of a pseudo-Roman style. These buildings are also what gives Toulouse its nickname '''La ville rose''' (The pink city).In the middle ages, Toulouse was one of the richest cities of France due to the sale of blue coloring (pastel) extracted from woad plants. This monopoly was only broken when the Portuguese began to import Indigo to Europe. Over 50 '''hotels''', mansions, remain witness to the past wealth. http://wikitravel.org/en/Toulouse