For 40 years, from 1931 to 1971, the Empire State Building held the title of world's tallest building. This site, from the Skyscraper Museum, tells the story of the building's construction. Includes wonderful historical photographs of...

At this site from the Global Grocery List Project, students collect data on the prices of common grocery items and submit their findings. They can then compare the data they collected to data from students around the world. There are...

Pics4Learning publishes a searchable photo collection of various types of buildings from around the world.

Here's a biography of civil rights activist, Fred Korematsu, who protested his arrest and conviction in 1942 for his refusal to report to an internment camp for Japanese Americans. Find about his lifelong fight to clear his name and for...

Take a journey of "world landmarks, discover natural wonders, and step inside locations such as museums, arenas, restaurants and small businesses" with 360-degree images with Street View by Google Maps.

The Hull-Rust-Mahoning Mine in Hibbing, Minnesota, is the largest open pit iron mine in the world. The mine, located in the Mesabi Range, supplied as much as one-fourth of all the iron ore mined in the United States during its peak...

The Indianapolis Motor Speedway is home to the Indianapolis 500, first held in 1911. The track, built in 1909, is the world's oldest continuously operating automobile race course. The 500 is the largest single-day sporting event in the...

Henry Cabot Lodge (1850-1924) was a lifelong resident of this house. Lodge, as United States Senator from Massachusetts, was a critical voice in foreign policy debates of the early 20th century; he supported a wider role for the United...

The only stadium in the world which has hosted the Summer Olympic Games (1932 /1984), the World Series (1959) and the Super Bowl (1967 /1973). It is currently the home of the USC Trojans football team.

Centerpiece of Edwards Air Force Base, this endorheic desert salt pan in the Mojave Desert has the worlds largest Compass Rose and the worlds largest runway at 7.2 miles. It is one of the alternate Space Shuttle landing sites.

Launched on May 12, 1941, this was the first of the Gato-class submarines completed before World War II. It represents what was the standard design for American fleet submarines at the beginning of that war. The USS Drum sank fifteen...

One of two surviving United States Navy South Dakota-class battleships, Massachusetts saw action in World War II, winning 11 battle stars. She is on display at Battleship Cove.

An internment camp for Japanese-Americans during World War II.

Site of a World War II Japanese American internment camp.

An intact Balao-class submarine, USS Lionfish served two tours of duty in the Pacific during World War II and served as a training vessel before being decommissioned and placed on display at Battleship Cove.

A combined road and railway bridge which was, when completed in 1874, the longest arch bridge in the world. Extends into St. Louis, Missouri.

The Washburn "A" Mill complex was the second-largest flour mill in Minneapolis, Minnesota. The original mill was built in 1874 by Cadwallader C. Washburn, but destroyed in an explosion in 1878, killing 18. The mill was later rebuilt, and...

In use for 107 years; oldest active fireboat in the world.

Formerly the largest indoor aquarium in the world.

Excellent example of a Fletcher class destroyer; saw service in World War II and Korea; now in the Buffalo and Erie County Naval & Military Park.

US Navy Submarine which sank 16 Japanese vessels during World War II. Now a Museum Ship.

The largest Japanese American internment camp, it also had the highest security and stayed open longest, even after World War II. The Redress movement in the 1980s and pilgrimages to Tule Lake led to the Civil Liberties Act of 1988.

Where the first relatively complete set of dinosaur bones (Hadrosaurus foulkii) in the world were discovered in 1838 by Joseph Leidy.

A Balao class submarine, she served in World War II before becoming a museum ship and part of the San Francisco Maritime National Park Association. She still has several working parts, including the periscopes and a torpedo tube.