New York ? Two designs that would put the tallest buildings in the world at the site of the World Trade Center were selected Tuesday as the finalists in the plan to redevelop ground zero.

The plan from Berlin architect Daniel Libeskind calls for glassy, angular buildings clustered around the foundations of the fallen towers. The other, proposed by an international team of design firms known as THINK, evokes the original trade center with twin towers of ethereal latticework.

The final plan will be picked at the end of the month.

“What we’re doing today is advancing two extraordinary designs,” said Roland Betts, head of the redevelopment planning committee. Neither was “set in stone,” he said, but officials would try to retain the main concepts.

The final designs include a conceptual vision for where the victims’ memorial might be built, but a specific plan is scheduled to be chosen in September after an international competition.

Nine proposals for redeveloping the 16-acre site where nearly 2,800 people were killed were unveiled late last year.

The selection of the finalists came after a sometimes-contentious review that involved the Lower Manhattan Development Corp., the agency overseeing redevelopment, and the Port Authority of New York and New Jersey, which owns the trade center site.

The finalists each feature buildings surpassing Malaysia’s 1,483-foot Petronas Twin Towers, the tallest in the world. The trade center towers were 1,350 feet.

A cluster of stark, geometric buildings — one topped by a spire reaching 1,776 feet — forms the core of Libeskind’s design. The THINK team, led by architects Rafael Vinoly and Frederic Schwartz, conceived a “World Cultural Center” with two 1,665-foot towers.

Neither envisions office space at the top of the structures.

A proposed design by an architectural team known as THINK, left, and architect Daniel Libeskind's proposal, right, are the finalists for the plan to rebuild ground zero. Either would exceed the height of the tallest building in the world, Malaysia's 1,483-foot Petronas Twin Towers. The World Trade Center towers were 1,350 feet. Tuesday's announcement moved plans forward to build on the site of the 9-11 terrorist attacks in New York.

The Libeskind design calls for 70 stories of offices, with airy “gardens of the world” beckoning tourists above office level. In the THINK plan, a library, museum and other cultural attractions would be suspended inside the latticework towers with offices concentrated at the site’s perimeter.

Betts suggested a number of practical issues must be addressed.

For example, Libeskind’s plan to preserve part of ground zero’s seven-story pit also must reinforce a wall holding back the Hudson River. Betts said “issues related to cost and height” would be analyzed for the THINK plan.

The plans do not include detailed cost estimates; rebuilding will be funded through a combination of public and private financing.

The height of the buildings has been an issue. While many New Yorkers have called for soaring structures that would replace the twin towers, a New York Times/CBS poll found 53 percent of New Yorkers would be unwilling to work in one of the higher floors at the site.

“Personally, I worked in the building for 20 years, and I wouldn’t like to see the tallest building there,” William Rodriguez, who heads a survivors’ group, said Tuesday.