Today marks the 20th anniversary of the fall of the Berlin Wall, which signaled the collapse of communism in Europe and eventually an end to the Cold War.
World leaders including German Chancellor Angela Merkel, British Prime Minister Gordon Brown, French President Nicolas Sarkozy and Russian President Dmitry Medvedev are attending various ceremonies to mark the event. More than 1,000 dominoes â€“ lining a 1.2-mile strip where the wall once stood - will be toppled over, to symbolize the domino effect the collapse had in ending communism throughout Eastern Europe.
Where were you when the wall fell? What impressions were you left with from that historic day?
Let us know. Heidi will share some of your comments in the Newsroom 9am – 11am ET.