The museum, which opened in 2003, has hosted political debates and speeches, including then-presidential candidate Barack Obama’s historic address on race in March 2008.
The longest (and most expensive) bridge in the world when it opened in 1936, the Bay Bridge was first proposed by self-proclaimed "Emperor Norton I" in 1869.
This sign, designed by neon artist Betty Willis and erected in 1959, has become a world-famous symbol of Las Vegas. It was added to the National Register of Historic Places in 2009.
These tar pits hold the fossils of Ice Age animals that became trapped in the asphalt deposits here. The fossils were first described by Wellesley College professor William Denton in 1875.
From 1921 to 2008, this building housed the American Stock Exchange and its earlier incarnations, the New York Curb Market and the New York Curb Exchange.
The trade center's twin 110-story towers, the planet's tallest buildings when they officially opened in 1973, were destroyed in the September 11, 2001, terrorist attacks against the U.S.
Over the years this building, opened in 1842, has been home to the New York Merchants Exchange and National City Bank (now Citibank), among others.
St. James Cathedral was completed in 1907 as the new cathedral seat of the Catholic Bishop Edward J. O'Dea‚'s Seattle Archdiocese.
Built as a U.S. military fort in 1811 in anticipation of the War of 1812 against the British, Castle Clinton went on to serve a variety of roles.
The Pioneer Building, completed in 1892, was the prestige office building during the Klondike Gold Rush, housing 48 different mining firms in 1897.
The Old Federal Building is built where Seattle founder Arthur Denny and his party are thought to have first docked in 1851, at the site that became Seattle.
Completed in 1907, this Beaux Arts building housed U.S. Customs Service operations for the port of New York until 1973.
This Georgian-style brick house is a replica of the one where Thomas Jefferson drafted the Declaration of Independence in June 1776.
Architect B. Marcus Priteca's Coliseum Theater was one of the world‚'s first movie palaces, and opened in 1915 as Seattle's first theater devoted to motion pictures.
Completed in 1789, this building is home to the American Philosophical Society, the scholarly organization founded by Benjamin Franklin in 1743.
This was the home of 19th-century author Samuel Langhorne Clemens, better known as Mark Twain. The Missouri-born Clemens moved with his wife Olivia into this 19-room Victorian Gothic home in 1874.
Home to the Los Angeles Philharmonic, this 3.6-acre complex designed by architect Frank Gehry was initially funded by Lillian Disney, widow of Walt Disney
To keep the solar glare out of batters' eyes in the late afternoon hours, home plate was placed in the southwest area of the plot of land, with the third base line pointing northward.
After the closings of Yankee Stadium and Shea Stadium in 2008, Dodger Stadium has the largest seating capacity in the Majors (56,000).
Opened in 1966 and renovated in 1998, Angel Stadium of Anaheim is the fourth oldest active Major League Baseball stadium. The halo atop the "Big A" lights up after each Angels' victory.
Safeco Field officially opened on July 15, 1999 in the middle of the baseball season. The retractable roof takes about 10 minutes to fully close.
Designed by Max Abramovitz, the hall opened in 1962 as Philharmonic Hall, as the new home concert venue of the New York Philharmonic, after the orchestra moved from Carnegie Hall.
This Egyptian revival theater was developed by Sid Grauman and Charles E. Toberman in 1922 to accommodate the growing population of Los Angeles.
