NH Constanza hotel Designed by the prestigious architect Rafael Moneo, the NH Constanza is located between Diagonal avenue and Numancia street, in the heart of Barcelona’s business area. Very close to the L’Illa Diagonal shopping centre and easy access from the airport. Train station: 10 mn Prat airport: 15 km / 20 mn Conference site, Science museum: 20 mn by bus Address Deu i Mata, 66-69 08029 Barcelona Spain