Big Ben is one of the most famous and iconic landmarks of London, England. It is a huge clock located on the north side of the Palace of Westminster, also known as the Houses of Parliament. The clock tower itself stands at an impressive height of 96 meters (316 feet), and is one of the most recognizable symbols of London's skyline.

The clock tower was completed in 1859, and the clock itself has been keeping time since then with incredible accuracy. The four clock faces are made of opal glass and measure almost 23 feet in diameter each. The clock tower is also home to a massive bell known as Big Ben, which weighs in at over 13 tons.

Big Ben is not actually the name of the clock tower or the bell, but rather the nickname for the bell itself. The bell was named after Sir Benjamin Hall, who oversaw the installation of the bell in the clock tower.

One interesting fact about Big Ben is that the clock is adjusted twice a year to account for changes in temperature that can affect its accuracy. The clock is also occasionally stopped for maintenance and repairs, which can take up to several weeks to complete.

Another interesting fact is that the chiming of the bell can be heard for miles around. It has been featured in numerous films, TV shows, and other media, and has become an iconic symbol of London's rich history and cultural heritage.

Visitors to London can take a guided tour of the Houses of Parliament and climb to the top of the clock tower for a stunning view of the city. The tower is also illuminated at night, making it a truly spectacular sight to see.