The part of Hoi An most sought-after by visitors is its incredibly photogenic mustard-coloured Old Town, a UNESCO-listed collection of beautifully preserved buildings; some of these still function as private homes, while a total of 22 are open to the public and operate largely as museums. Of particular interest are historic merchant residences, some of which offer short guided tours (the Old House of Tan Ky is among the most interesting), and Chinese assembly halls used for gatherings and celebrations by individual ethnic groups. Visiting each attraction will require one of the 5 admission slips that come with a general Hoi An Ancient Town entry ticket.

The Chinese who settled in Hoi An identified themselves according to their province of origin. Each community built its own assembly hall, known as 'hoi quan' in Vietnamese, for social gatherings, meetings and celebrations. The Fujian Assembly Hall is, perhaps, the best-known one; the Cantonese Assembly Hall stands out for its beauty and contains a tranquil inner courtyard, while the 19th-century Hainan Assembly Hall functions, in part, as a memorial to the 108 merchants from Hainan who met a tragic fate being mistaken for pirates – the entire story is narrated via wall posters.

The National Park Service interprets the life and family of Ulysses S. Grant at this 10-acre site. Grant is known as the victorious Civil War general that saved the Union and the 18th President of the United States. Open daily except Thanksgiving, Christmas and New Year's Day. Free to the public.

The Cayman Turtle Centre is a conservation facility and tourist attraction that welcomes hundreds of thousands of visitors per year. Although the facility was initially used to breed the endangered green sea turtle for commercial purposes and still continues to operate as a farming operation, its importance as a research and conservation facility cannot be overstated.