1. Ciudad Colonial, also known as Zona Colonial, is the historic central neighborhood of Santo Domingo, the capital city of the Dominican Republic. It was founded in 1498 and is the oldest permanent European settlement in the Americas. The area is a UNESCO World Heritage Site and is known for its well-preserved landmarks, including the Cathedral of Santa María la Menor, the Alcázar de Colón, and the Fortaleza Ozama.

2. The working hours of the various attractions in Ciudad Colonial can vary, but many are open to visitors during regular business hours. It is recommended to check the specific operating times of the attractions you are interested in visiting. Phone numbers for some of the major attractions are as follows:

- Cathedral of Santa María la Menor: +1 809-689-6604

- Alcázar de Colón: +1 809-682-4202

- Fortaleza Ozama: +1 809-682-4750

3. Admission fees for the attractions in Ciudad Colonial can also vary. Some sites may offer free entry, while others may have a small fee for visitors. Transportation options to get to Ciudad Colonial include taxis, public buses, and guided tours. The area is walkable and best explored on foot to truly appreciate its historic charm and architecture.