The Elmhurst library, Queens, N.Y.

LOST 1942 New Frontier casino-hotel, Las Vegas, Nev.: 16-story hotel on Strip, once owned by Howard Hughes and host to such stars as Elvis Presley and Wayne Newton, imploded in November to make room for condominiums and hotel

1950 Maryville College Fine Arts Center, Maryville, Tenn.: modernist gem designed by famed Chicago architects Schweikher and Elting razed to make room for $47 million civic arts center on college campus

THREATENED 1912 Tiger Stadium, Detroit: city officials plan to level 90 percent of stadium, in disuse since Tigers moved to new ballpark in 2000, and turn remaining portion into community center and stadium memorial

1912 Herkimer Arms apartments, Pasadena, Calif.: only known example of apartments by Greene and Greene architects may be moved or demolished by landowner, Fuller Theological Seminary, to make room for new chapel

1906 Elmhurst Library, Queens, N.Y.: Carnegie Institution-funded library needs more space; city officials propose demolition of Georgian revival structure, with its rock garden and pools, instead of restoration and expansion

1897 Dunminning Mansion, Newtown Square, Pa.: 15,000-square-foot Normandy-style mansion, built by Theophilus Parsons Chandler Jr., founder of University of Pennsyvania's architecture department, will be razed by developer Bentley Homes to build 17 luxury houses on site

SAVED 1942 Landing Ship Tank Building, Fort Knox, Ky.: building where equipment was tested during World War II removed from U.S. Army's demolition list thanks to preservation effort led by veterans

1895 Masonic Building, Greenfield, Ind.: one of Greenfield's oldest downtown landmarks to be renovated as Creative Arts Center of Greenfield, providing gallery and studio space for local artists

RESTORED 1906 Hotel Chauvet, Glen Ellen, Calif.: Italianate brick hotel in National Register languished for years until three-year, $5 million restoration converted building to condos

1887 Eldridge Street Synagogue, New York: after massive $18 million, 20-year restoration, one of first synagogues in America built by Eastern European Jews reopened late last year; National Historic Landmark now includes museum celebrating Jewish life in America