As of 2010, the longest suspension bridge in the world is the Akashi Kaikyo Bridge in Kobe, Japan. Opened in 1998, it spans an amazing 1991 metres (6529 feet). Check out more interesing bridge facts or our list of the longest bridges in the world.

Used for water distribution, the Delaware Aqueduct in New York, USA is the longest tunnel in the world (as of 2010). Drilled through solid rock, it reaches a staggering 137 kilometres (85 miles) in length. More tunnel facts.

The Hoover Dam, built along the Colorado River between 1931 and 1936 reaches 726 feet in height (221 metres). More interesting dam facts.

High speed passenger trains in China reach speeds of up to 350 kph (220 mph).

The Titanic was 882 feet (269 metres) long.