In PHOTOS: Around the world in the last 24 hours

Presenting some of the best PHOTOGRAPHS from around the globe in the last 24 hours.The father of seven-month-old Nopparat teaches him to wai, a traditional Thai greeting with the palms pressed......

World's busiest metro rail stations

There are around 160 metro systems in the world. The first metro system, the London Underground, was opened in 1863. While Shanghai Metro is the longest system in passenger route length, the Tokyo......