National Historic Landmark-USS Olympia (C-6)

National Historic Landmark -USS OLYMPIA (Cruiser)

The oldest extant steel-hulled warship in the world, OLYMPIA served as Commodore Dewey's flagship in the Battle of Manila Bay (1898), which marked the emergence of the U.S. Navy as one of superior power.

The cruiser ...

National Historic Landmark -Old West, Dickinson College

National Historic Landmark -Old West, Dickinson College

Designed in 1803 by Benjamin H. Latrobe, one of America's first professional architects, Old West was completed in 1822.

It lies at the heart of the college founded by Dr. Benjamin Rush with ...

National Historic Landmark -Old Economy

National Historic Landmark -Old Economy

This thirty-acre historic district is significant as the most complete site of the utopian community known as the Harmony Society.

The district includes over 90 privately-owned buildings, mainly residences, as well as a four-acre museum ...

National Historic Landmark -Oakmont Country Club

National Historic Landmark -Oakmont Country Club

Noted for its nationally significant golf course, this is the oldest top-ranked course in the United States.

Its original layout is virtually intact and still in use for club and tournament play.

Generally considered ...

National Historic Landmark - New Market

National Historic Landmark - New Market

An 18th-century street market, it was used well into the 19th century. Two rows of brick pillars support a gable roof and arched ceiling over an open market area.

The structure was restored in 1994 ...

National Historic Landmark - New Century Guild

National Historic Landmark - New Century Guild

This building has served as the location for the New Century Guild from 1906 to the present.

Founded in 1882, this organization was one of the earliest, largest, and most successful of the many ...

National Historic Landmark - Mount Pleasant

National Historic Landmark - Mount Pleasant

Completed in 1762, this is one of the finest examples of late Georgian domestic architecture in the Middle Colonies.

The structure contains a central hallway with flanking rooms rich in interior decorations. (Now within Fairmount ...

National Historic Landmark - Mount Pleasant

National Historic Landmark - Mount Pleasant

Completed in 1762, this is one of the finest examples of late Georgian domestic architecture in the Middle Colonies.

The structure contains a central hallway with flanking rooms rich in interior decorations. (Now within ...

National Historic Landmark - Mother Bethel A.M.E. Church

National Historic Landmark - Mother Bethel A.M.E. Church

Founded in 1793, Mother Bethel African Methodist Episcopal Church (1889) is a living memorial to Richard Allen (1760-1831), former slave, Methodist minister, preeminent Black leader, and founder of the first permanent national association ...

National Historic Landmark -Mill Grove

National Historic Landmark -Mill Grove (John James Audubon House)

John James Audubon (1785-1851), famous American naturalist and artist, lived in this 2 1/2 story fieldstone farm house from 1804 to 1808.

It was here Audubon made his earliest observations of ...