Witness attempts to rescue and recover passengers from the capsized steamship Eastland in Chicago

Public Domain

Learn about Adolf Hitler's public speaking style by listening to him delivering the closing address at the 1934 Nürnberg Rally. Footage of this speech served as the climax of Leni Riefenstahl's film Triumph des Willens (1935; Triumph of the Will). This excerpt is translated as “The movement [National Socialism] is a living expression of our people and, therefore, a symbol of eternity. Long live the National Socialist movement! Long live Germany!”

Encyclopædia Britannica, Inc.

It's the oldest mystery in colonial America.

Contunico © ZDF Studios GmbH, Mainz; Thumbnail Air Force Historical Research Agency

Overview of the Soviet Union's blockade of West Berlin, with a detailed discussion of the deutsche mark's role in the event.

© Chicago Architecture Foundation (A Britannica Publishing Partner)

Learn about the Chicago fire of 1871 and the rebuilding of the city, including construction of the Rookery building (1886), designed by Daniel H. Burnham and John Wellborn Root.

Encyclopædia Britannica, Inc.

It used to be treated more like a sewer than an ecosystem.

Checkerboard Film Foundation (A Britannica Publishing Partner)

Excerpt from the documentary Studio Gang Architects: Aqua Tower (2009).

© Chicago Architecture Foundation (A Britannica Publishing Partner)

Learn about wind-resistant architectural designs in Chicago, notably the bundled tube system used in Willis Tower.