Museum: Old Salem
Location: Winston-Salem, North Carolina
This was one of the first four historic districts in the U.S., is home to the oldest college building in the nation, the first college for women in the nation is in this district, the first recorded July 4th celebration was in this district, and this district is very large. President Washington visited in 1791 to see the city's rare water system, installed in the 1770s (very rare back then!) and stayed two or three days for the food, beer, music, and to meet the Governor. Winston-Salem has two or three of these Colonial "living history museum" National Landmark Districts, for those who love to visit them.
Museum: Bethabara Park
Location: Winston-Salem, North Carolina
Bethabara Park is the birthplace of Winston-Salem, where the Moravians built their first structures in what became the current city limits in November 1753. Today, it's known for having the nation's oldest church with attached living quarters, the nation's oldest brewery/distillery building, the only known and well-documented colonial community garden in the United States (1759), and the first European Medicinal Garden ever planted in the United States (planted in October 1756, by Doctor Kalberlahn).
Museum: Australian War Memorial and Anzac Parade monuments
Location: Campbell, Australian Capital Territory
Architect: Emil Sodersteen and John Crust (memorial)
Completed: 1941 (memorial)
Museum: National Gallery of Australia
Location: Parkes, Australian Capital Territory
Architect: Edward Madigan Torzillo and Partners/Col Madigan
Completed: 1981
Museum: Powerhouse Museum
Location: Ultimo, New South Wales
Architect: ? (original Ultimo Power House), Lionel Glendenning (museum and Wran Building addition)
Completed: 1899 (as Ultimo Power House), 1988 (as museum)