Though construction of the Washington Monument began in the mid-1800s, it wasn't until the 20th century that Washington truly emerged as a city of monuments and memorials. The Lincoln Memorial and the Jefferson Memorial were built during the first decades of the new century. The Federal Triangle, where thousands of government workers pass their days, was also created. The massive military office complex of the Pentagon was completed in 1943. In more recent years, the Franklin Delano Roosevelt Memorial, the Korean War Veterans Memorial and the Vietnam Veterans Memorial have been added to The Mall. Throughout the latter 20th century, Washington has been the site of inspiration and turmoil. Who can forget Martin Luther King's stirring "I have a dream" speech delivered from the steps of the Lincoln Memorial in 1963? The massive protest demonstrations against the Vietnam War came later in the decade. In the 1970s, the Watergate apartment, hotel and office complex became a household name after the break-in at Democratic National Committee headquarters by aides to Republican President, Richard M. Nixon, who eventually resigned in the wake of the scandal. At the start of the new century, Washington remains one of the most visited and most beautiful cities in the world. Visitors come to see the monuments and memorials and to revel in the nation's history. It is more than a city of government and politics; it's a city of distinctive, historic neighborhoods. It is an ever-changing, modern city and capital.