Register of Historic Places in Chuuk
http://www.cr.nps.gov/nr/index.htm

The following Chuukese sites are on the US National Register:

• Fauba Archaelogical Site, Tol Island (Native Period)

• Tonaachaw Mountain Weno Island (Native Period)

• Wiichen Men's Meetinghouse, Weno Island (Native Period)

• Japanese Army Headquarters, Roro, Tonoas Island (Japanese Period 1914-1945)

• Japansese Lighthouse Allei Island, Puluwat Atoll, Truk Lagoon (Japanese Period 1914-1945)

• St. Xavier Academy, Japanese Communication Centre, Weno Island (Japanese Period 1914-1945)

• Tonotan Guns and Caves, Weno Island (Japanese Period 1914-1945)

• Truk (Chuuk) Lagoon Underwater Fleet (Japanese Period 1914-1945)

In addition, the Truk (Chuuk) Lagoon Underwater Fleet has been designated the as a US National Historic Landmark, only one of two such designations in the FSM.
http://www.cr.nps.gov/nhl