Gym

Gym is type of lot in The Sims 2 and The Sims 3. It is also a lot assignment in The Sims 3.

The Sims 2
All pre-made college sub-neighborhoods in The Sims 2: University have gyms, although those lots also have other uses. Downtown and Bluewater Village each have a lot which has a gym area, but those lots are primarily devoted to other uses.

The Sims 3
As a lot assignment, gyms provide the Fit Atmosphere moodlet:

28 Hour Wellness Gym
The 28 Hour Wellness Gym is the default gym for Sunset Valley. It has two weight machines and two treadmills upon which Sims can work out. It also has showers, a small dining area, a small deck, and large swimming pool. It is also the Nintendo DS version of the gym.

Riverview Gymnasium
Riverview Gymnasium is, as the name suggests, the default gym for Riverview. It has three weight machines and two treadmills, all recolored red, upon which Sims can work out. It also has showers, a small dining area, and large pool.

Lakefront Wellness Center
Lakefront Wellness Center is the default gym for Twinbrook. The gym area of the lot is in a basement, with the upstairs areas hosting a hall. There is a yard with a trampoline.

Goldbeard's Gym
Goldbeard's Gym is the default gym for Barnacle Bay. There is a large pool on the ground floor, and there are exercise machines on the first floor.

Bridgeport gyms
AJV Wellness Center.

It is located in a skyscaper and boasts a pool, and various workout rooms.

Swole On Fitness
Swole On Fitness is the default gym for Appaloosa Plains.

Weight & Sea Rec Center
Weight & Sea Rec Center is the default gym for Starlight Shores.