From the Colosseum to the Hoover Dam, concrete has enabled remarkable feats of engineering. Its future applications may be equally impressive, potentially including self-healing concrete for more ...

The Colosseum, one of the most iconic landmarks ... the aim is to prevent future disappointment for individuals who purchased tickets through third parties, only to be denied entry at the last ...

Though it's not as popular as the Colosseum (but located nearby), the ... a visit to the Roman Forum a "must," but they do advise future visitors to rent or stream an audio guide or sign up ...

1. From the Great Wall of China to the Taj Mahal - 2. From the Pyramid of Giza to the Colosseum - 3. From Machu Picchu to the Great Barrier Reef The dances are inspired by two world famous ...