The Roman Baths of Ankara and Open-Air Museum (Roma Hamamı Açık Hava Müzesi) are located in the Ulus district, close to Ankara Castle and other key historical sites. Dating back to the 3rd century AD, the baths were built during the reign of Emperor Caracalla and once formed part of a large Roman complex. Today, the site is an outdoor archaeological museum, where visitors can walk among the remains of the frigidarium, tepidarium, and caldarium, along with scattered stone columns, inscriptions, and statues displayed in the open air. The layout helps visitors clearly understand how Roman bathhouses functioned in antiquity.

Unlike many outdoor sites in Ankara, the Roman Baths do charge an entrance fee, typically a small, affordable ticket (prices may vary for locals and international visitors). The museum is open daily during standard museum hours, generally from morning until late afternoon, with shorter hours in winter and extended hours in summer. It is usually closed on Mondays, in line with many state-run museums in Turkey. There are no fixed guided tours, but informational signs are placed around the site, and guided visits may be arranged privately or through tour operators.

Because the museum is entirely outdoors, visitors should plan for the weather: hats and water are recommended in summer, while warmer clothing is helpful in colder months. The paths are mostly flat but include uneven stone surfaces, so sturdy footwear is advised, and accessibility for wheelchairs may be limited in some areas. The site can be visited year-round, but spring and autumn offer the most comfortable conditions. Photography is allowed, and there are few restrictions beyond staying on marked paths and respecting the archaeological remains.