National Historic Landmark -W.P. SNYDER, JR. (Towboat)

National Historic Landmark -W.P. SNYDER, JR. (Towboat)

Towboats have been employed moving barges on all the navigable waters of the Western Rivers, and have been an important component of the American transportation system since the 1850s.

Few examples of any paddlewheel ...

National Historic Landmark - John B. Tytus House

National Historic Landmark - John B. Tytus House

Lifelong home of John ButlerTytus (1875-1944), inventor of a practical hot, wide-strip, continuous steel-rolling process, which contributed significantly to the growth of the steel industry.

Courtesy National Park Service National Historical Landmarks

National Historic Landmark-Spacecraft Propulsion Facility (B-2)

National Historic Landmark - Spacecraft Propulsion Research Facility (B-2)

This site is significant in the development of the Centaur Rocket, which has launched some of America's most important space probes.

This facility enabled engineers to hot-fire full-scale Centaur engines in ...

National Historic Landmark - Sherman Birthplace

National Historic Landmark - Sherman Birthplace

This is the birthplace of Senior Republican Senator John Sherman (1823-1900), who wrote the Sherman Anti-Trust Act (1890), the first attempt by the Federal Government to regulate industry.

He also served in the U.S. House ...

National Historic Landmark - S. Bridge, National Road

National Historic Landmark - S. Bridge, National Road

Constructed in 1828, this single arch stone structure formed part of the National Road, which was extended through Ohio between 1825 and 1837.

One of four of its kind extant in the State, ...

National Historic Landmark-Capt Edward V. Rickenbacker House

National Historic Landmark - Captain Edward V. Rickenbacker House

From 1895 to 1922, this simple dwelling was the residence of Edward Vernon Rickenbacher (1890-1973).

A leading race car driver prior to the First World War, Rickenbacher became a hero as ...

National Historic Landmark - Tombstone Historic District

Tombstone is one of the best preserved specimens of the rugged frontier town of the 1870s and '80s. Site of one of the West's richest silver strikes and the "gunfight at the OK Corral", Tombstone epitomizes the legendary reputation of ...

National Historic Landmark-Sierra Bonita Ranch

Founded in 1872 by Col. Henry C. Hooker to supply beef to Army posts, mining camps, and Indian agencies, this was the first permanent American cattle ranch in Arizona, as well as the first to introduce graded stock into the ...

National Historic Landmark - San Xavier del Bac Mission

Founded in 1700 by the Jesuits, Bac then formed the extreme northern thrust of Nueva Espana. The present structure is the third, perhaps the fourth, church on the site. Consecrated by Franciscans, it was begun in 1783 and completed in ...

National Historic Landmark - San Cayetano de Calabazas

An archeological site in southern Arizona, San Cayetano de Calabazas is the remains of a complex series of religious, government, and military occupations begun in 1756 by Spanish missionaries. Significant as the northernmost mission district of established by Jesuits, it ...