Preview: A look inside London's iconic Big Ben

Tourists look towards Saint Stephen's Tower (commonly known as Big Ben) and the Houses of Parliament while riding on an open-top bus through central London on April 15, 2012.
LEON NEAL/AFP/Getty Images

As Queen Elizabeth II readies for the celebration of her 60 years on the throne, another famous English figure ticks another year gone by.

The iconic London landmark Big Ben is 153 years old this year. "CBS This Morning" will feature an inside look at the structure with a peek into its past on Thursday.

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Completed in 1859, Big Ben is an icon that as associated with London and England as the royals themselves. Millions of tourists visit the historical attraction each year.

The name Big Ben is commonly used to describe the tower, the clock and the bell, but the name was actually first given to the Great Bell. Queen Victoria, the longest reigning monarch who spent 63 years on the thone, was queen when Big Ben was completed.