The greatest of all Versailles attractions is the monument par excellence, Versailles Palace. It was a royal residence in past centuries, and its construction was ordered by Louis 14th. It's one of the most important architectural complexes in Europe and a visit is one of the top things to do in Versailles. It's impressive from the first moment you lay eyes on it thanks to its gardens and its amazing facade.
Other things to see in Versailles include the Grand and the Petit Trianon. The Grand Trianon is a collection of buildings and gardens which were built in the chateau grounds of Versailles during the reign of Louis 14th and, and since 1979 has been a UNESCO World Heritage Site. The Petit Trianon is south-east of the Grand Trianon and houses a zoo, a garden, a botany school,and a greenhouse.
Other places to visit in Versailles are the palm game room, the stables of the queen or the king's garden, and many others. The religious heritage is also remarkable. There is the Church of Notre-Dame, St. Louis Cathedral, the Church of Saint Symphorien and the Cloister of the Recollects.
There are other cultural attractions in Versailles, such as museums. In this area you'll find the Lambinet Museum, the Museum of the Carriages and the Museum of Parliament. If you're still curious about what to do in Versailles, have a look at these recommendations from the minube community and find the best Versailles activities and stuff to do in Versailles.