Big Ben

Location:
Westminster, London SW1A 0AA, United Kingdom

Facts:
Chimes every 15 minutes and it's sounds can be heard from a 5 mile radius

The Union Flag flies over Big Ben whenever Parliament is in session. 

Sometimes referred to as St. Stephen's Tower, The Clock Tower and Big Ben
First chimed May 31,1859
Gothic Revival architectural style
The clock was silenced during the funeral of Margaret Thatcher
Controversy: No one really knows where the name "Big Ben" originated from
Featured in countless films and TV shows as well as other mediums of pop culture