It’s amazing when you think about it: This house has served as residence, office, reception site, and world embassy for every U.S. president since John Adams. The White House is the only private residence of a head of state in the world that is open year-round to the public, free of charge, a practice that Thomas Jefferson inaugurated. On a typical day, you’ll be one of some 1,600 people touring the White House, knowing that meanwhile, somewhere in this very building, the president and staff are meeting with foreign dignitaries, congressional members, and business leaders, hashing out the most urgent national and global decisions. 
An Act of Congress in 1790 established the city now known as Washington, District of Columbia, as the seat of the federal government. George Washington and city planner Pierre L’Enfant chose the site for the president’s house and staged a contest to find a builder. Although Washington picked the winner—Irishman James Hoban—he was the only president never to live in the White House. The structure took 8 years to build, starting in 1792, when its cornerstone was laid. Its facade is made of the same stone used to construct the Capitol. The mansion quickly became known as the “White House,” thanks to the limestone whitewashing applied to the walls to protect them, later replaced by white lead paint in 1818. In 1814, during the War of 1812, the British set fire to the White House and gutted the interior; the exterior managed to endure only because a rainstorm extinguished the fire. What you see today is Hoban’s basic creation: a building modeled after an Irish country house (in fact, Hoban had in mind the house of the Duke of Leinster in Dublin).
Note: Tours of the White House exit from the North Portico. Before you descend the front steps, look to your left to see the window whose sandstone still remains unpainted as a reminder of the 1814 fire.
Additions over the years have included the South Portico in 1824, the North Portico in 1829, and electricity in 1891, during Benjamin Harrison’s presidency. In 1902, repairs and refurnishing of the White House cost nearly $500,000. No other great change took place until Harry Truman’s presidency, when the interior was completely renovated after the leg of Margaret Truman’s piano cut through the dining room ceiling. The Trumans lived at Blair House across the street for nearly 4 years while the White House interior was shored up with steel girders and concrete.
In 1961, First Lady Jacqueline Kennedy spearheaded the founding of the White House Historical Association and formed a Fine Arts Committee to help restore the famous rooms to their original grandeur, ensuring treatment of the White House as a museum of American history and decorative arts. “It just seemed to me such a shame when we came here to find hardly anything of the past in the house, hardly anything before 1902,” Mrs. Kennedy observed.
Every president and first family put their own stamp on the White House. President Trump has made subtle changes to the Oval Office, replacing maroon drapes with gold and swapping out camel-colored leather chairs with those covered in pale yellow fabric. The Obamas installed artworks on loan from the Hirshhorn Museum and the National Gallery of Art in their private residence, and chose works to hang in the public rooms of the White House. (Changing the art in the public rooms requires approval from the White House curator and the Committee for the Preservation of the White House.) Michelle Obama planted a vegetable garden on the White House grounds, and President Obama altered the outdoor tennis court so that it could be used for both basketball and tennis.
Highlights of the public tour include the gold and white East Room, the scene of presidential receptions, weddings, major presidential addresses, and other dazzling events. This is where the president entertains visiting heads of state and the place where seven of the eight presidents who died in office (all but James Garfield) laid in state. It’s also where Nixon resigned. The room’s early-18th-century style was adopted during the Theodore Roosevelt renovation of 1902; it has parquet Fontainebleau oak floors and white-painted wood walls with fluted pilasters and classical relief inserts. Note the famous Gilbert Stuart portrait of George Washington that Dolley Madison saved from the British torch during the War of 1812; the portrait is the only object to have remained continuously in the White House since 1800 (except during reconstructions).
You’ll visit the Green Room, which was Thomas Jefferson’s dining room but today is used as a sitting room. Mrs. Kennedy chose the green watered-silk wall covering. If you glance out the windows you’ll spot the Jefferson Memorial vividly standing out in the distance. In the Oval Blue Room, decorated in the French Empire style chosen by James Monroe in 1817, presidents and first ladies have officially received guests since the Jefferson administration. It was, however, Martin Van Buren’s decor that began the “blue room” tradition. The oldest portrait in the White House hangs over the fireplace mantel, that of Benjamin Franklin, painted in 1767 by an artist named David Martin. Grover Cleveland, the only president to wed in the White House, was married in the Blue Room. This room was also where the Reagans greeted the 52 Americans liberated after being held hostage in Iran for 444 days, and every year it’s the setting for the White House Christmas tree.
The Red Room, with its red-satin-covered walls and Empire furnishings, is used as a reception room, primarily for afternoon teas. Several portraits of past presidents and a Gilbert Stuart portrait of Dolley Madison hang here. Dolley Madison used the Red Room for her famous Wednesday-night receptions.
From the Red Room, you’ll enter the State Dining Room. Modeled after late-18th-century neoclassical English houses, this room is a superb setting for state dinners and luncheons. Below G. P. A. Healy’s portrait of Lincoln is a quote taken from a letter written by John Adams on his second night in the White House (FDR had it carved into the mantel): I PRAY HEAVEN TO BESTOW THE BEST OF BLESSINGS ON THIS HOUSE AND ON ALL THAT SHALL HERE-AFTER INHABIT IT. MAY NONE BUT HONEST AND WISE MEN EVER RULE UNDER THIS ROOF.