It contains the city's only zoo and some monuments as well as the wall.

On its second floor, enclosed within an old storage room, is Manhattan's only student-run zoo.

Currently, it is the only zoo in the country to hold African Cheetahs.

The Beardsley is the only zoo of its kind in the region.

For this hard-pressed city, running Connecticut's only public zoo has become a $400,000-a-year luxury that officials say they can no longer afford.

"It had been around a while and was the only zoo in the state, so it was important to maintain that stature."

As the only zoo in North Malaysia, it tends to receive a large amount of visitors.

It is also the only zoo in Britain to house koalas and giant pandas.

It is the only zoo on the island.

Established in 1986, it is the only municipal zoo in the Palestinian territories.