Very first bridges are dating to the Greek Bronze Age (13th century BC). Several intact arched stone bridges from the Hellenistic era can be found in the Peloponnese.
The greatest bridge builders of antiquity were the ancient Romans. The Romans built arch bridges and aqueducts that could stand in conditions that would damage or destroy earlier designs. Some stand today. An example is the Alcantara Bridge, built over the river Tagus, in Spain. The Romans also used cement, which reduced the variation of strength found in natural stone. Here are the included in the game bridges:
1. Wooden bridge - 1500 BC
2. Stone bridge - 600 AD
3. Rialto Bridge Italy 1591
4. Iron bridge - 1781 AD
5. The Brooklyn Bridge NY - 24, 1883
6. Tower Bridge UK june 30, 1894
7. Sydney Harbour Bridge Australia 19 January 1932
8. Danube Bridge Bulgaria 20 June 1954
9. Concrete Bridge - 1960 AD
10. Samuel Beckett Bridge - Dublin, Ireland 10 December 2009