These days, it seems, the buzz in travel circles is all about Europe's ultra-fast rail lines—those sleek Trains a Grande Vitesse or TGVs such as the Eurostar Chunnel train that zips under the English Channel between London and Paris in under three hours. These modern technological marvels dash along so fast that the countryside speeds by in a blur of green and brown, like a DVD player on fast-forward.

I think all historical bridges in Isfahan can be among the most beautiful bridges in the world, some pics of Khaju bridge:

Akwedukt w Arkadii, fot. Monika Antczak / MNA

The Four Brigdes when there was four Bridges