Simplify the following text for a Grade 11 native English-speaking person.
Original: The Palace of Westminster , also known as the Houses of Parliament or Westminster Palace , is the meeting place of the two houses of the Parliament of the United Kingdomâ '' the House of Lords and the House of Commons .
Simplified: The Palace of Westminster , also known as the Houses of Parliament or Westminster Palace , in London , is where the two Houses of the Parliament of the United Kingdom meet .