Het Dolhuys is a museum located in Haarlem, Netherlands. It is dedicated to mental health and illness, and is a must-see for anyone interested in the history of mental health in the Netherlands.

The museum is housed in a former mental hospital, built in 1578, and is the oldest museum dedicated to mental health in the world. The building is a beautiful example of Dutch Renaissance architecture, and the museum's collection includes artifacts from the hospital's long history.

Visitors can explore the museum's permanent and temporary exhibitions, which explore the history of mental health in the Netherlands, and the current state of mental health care in the country. The museum also houses a library, which contains a wealth of information about mental health and related topics.

Het Dolhuys also offers a variety of educational programs and workshops, which are designed to educate visitors about mental health and illness. The museum also hosts lectures and symposia, which offer insight into current mental health issues.

Visitors to Het Dolhuys have praised the museum for its interesting and informative exhibitions, as well as its beautiful architecture. On TripAdvisor, one visitor said, "This museum is a must for anyone interested in the history of mental health in the Netherlands. The building is beautiful and the exhibitions are very informative and interesting."

Another visitor wrote, "This museum is a great place to learn about mental health and illness. The exhibitions are very informative and interesting, and the library is a great resource."

Het Dolhuys is a unique and fascinating museum, and a must-see for anyone interested in the history of mental health in the Netherlands. The museum's exhibitions, workshops, and lectures offer visitors an insight into the past and present of mental health in the country, while the beautiful architecture of the building provides a unique backdrop.