The U.S. Capitol Building is the seat of the U.S. Congress, located in Washington, D.C. Americans regard the Capitol as the supreme symbol of state power owned by the people, governed by the people and enjoyed by the people. The Capitol was laid by President Washington on September 18, 1793 and put into use in 1800. During the Second American-British War in 1814, it was burned by the British and some buildings were destroyed. Later, the conference rooms, round roofs and round halls of both houses of the Senate and the House of Representatives were built, and many times they were rebuilt and expanded. To visit the rooms of the Senate and the House of Representatives and appreciate the dome of the building and its art collection, you need to stay here for at least an hour. If you want to get a taste of the Capitol, you'd better contact the senator or congressman before you visit to see if you can participate. From Monday to Saturday, from 8:30 to 16:30, visitors to the Capitol are open. Of course, you'd better book it before you go. Because of the advance booking, we were able to go inside for sightseeing. The booking procedure is very simple. You can see it on the official website of the Capitol Building on the Internet. Anyone can make an appointment, and it's free. When you go in, you will give each person a headset, followed by a tour guide. The main visitors were some artworks on display and the transparent roof of the Capitol. It has its own souvenir shop, which can sell gifts, business cards and other things.