Ruby Emma Hotel Amsterdamvs?

"The hotel has adopted an internal grey water system and, more notably, an aquaponic rooftop greenhouse, which serves the bar and restaurant below." Full review

"This is a hotel with a genuine and imaginative commitment to sustainability: think greenhouse on the roof, shower water recycled for the loos, and geo-thermal energy for heating." Full review

"Easy on the eyes and with high-tech and sustainability cred, QO wows with its stylish rooms controlled by iPad and featuring blonde wood and black matte fittings." Full review