In a city of magnificent interior spaces, the Corcoran, just one block from the White House, is one of the most beautiful.

Guastavino's, a former restaurant (now reserved for private functions) in a magnificent space, is also worth peeking into.

"That's my strongest recollection, this magnificent outdoor space, a meeting place, a place that celebrated New York, a place for everyone."

History lovers might like the Renaissance, with magnificent public spaces but less satisfactory rooms; a hotel has stood on the site since 1815.

In the magnificent space, it's not hard to discern the echoes of generations enchanted by this city.

And the nave is a magnificent space, its size a tantalizing balance between the grandeur of a cathedral and the intimacy of a country church.

The steakhouse, which sits snugly on the balcony overlooking the main concourse, is entirely open to the magnificent space around it.

"Never did I imagine that I would live in her apartment," he added, describing it as "a magnificent space with magnificent views."

"We're willing to spend a million dollars to create a magnificent public space," said Mr. Biederman, who heads three business-improvement districts in midtown.

She said the current plan would "change forever the magnificent open spaces and vista" of the Mall.