Although the new Lehman Wing of the Metropolitan Museum of Art was a controversial project based on a questionable premise, the finished building is an architectural tour de force. Despite restrictions imposed by the Landmarks Commission and the donor, the architects responded with consummate ingenuity, artistry, and skill. (JG)

Underground construction at Columbia University merges two libraries--the Avery architectural library and the fine arts collection--and adds an auditorium, plus exhibition and reception space. (Author/MLF)

Renovations provide a new media center, some flexible space, and a new spirit. (Author/MLF)

A therapeutic recreation center for the retarded and handicapped is proving that barrier-free design has come of age. (Author/MLF)

Handball and tennis courts are covered with a large slatted roof with slats open to the north to provide protection from the winter rain and summer sun as well as allow adequate ventilation and good illumination from the diffused north light. (Author/MF)

The sports stadium is a civic monument; getting it built is more an exercise in politics and economics than it is in design. (Author)

A recreational building at Hampshire College in Amherst, Massachusetts, situated at the center of the campus adjoining the library, helps break down barriers traditionally maintained between the disciplines. (Author/MLF)

In the first part of an interview, internationally famous engineer Fred Dubin talks of a full range of opportunities to conserve energy with passive design. (Author/MLF)

In part two of the interview, Fred Dubin discusses mechanical means of meeting the heating and air conditioning load. (Author/MLF)

An architect designed his combination living and working structure with a central solar heated area and nine thermal zones to make the most efficient use of energy collected. (Author/MLF)

Building design for a three-quarter round theater addition to the Arena Theater in Washington, D.C. (RA)

Discusses longrange plans for six community colleges in a 900-square mile county. Describes the master plan for and the design of one of the colleges -- a repetitive structural module that alternates narrow service spans with wide spans for uncommitted'' space. (Author/EA)

Reviews examples of earth-related architecture in the United States over the past 40 years. (Author)

Designing fire protection into a building is complex; it requires effective coverage, an economical installation, and compliance with many regulations. (Author)