- Chiesa di S. Maria: this church is not open to public. It has been restored for years and many important artistic objects have been so far found. It was built in the middle of Sperlonga in XII century and it was mentioned in a document in 1135 (Codex Caietanus). Here it was described as an important religious place in the Southern part of Lazio. The church has two naves and the main altar is decorated with a big painting portraying Our Lady of the Assumption. In the first years of 1700, S. Leone Magno was proclaimed the Patron of the town and the ancient chapel called of the Crib was dedicated to him. It contains a wonderful statue of Neapolitan school. Along the side naves there are several chapels. One of them contains an altar of 1700; the vault is richly frescoed and it is dedicated to Saint Dominick.
- Grotta di Tiberio: this cave maybe contained a villa already built during late-Republican age. It was widened and richly decorated during Tiberio’s age and became an imperial residence. The villa was built on Levante beach and included also the thermal baths and a private port. During Augustan age, it was restructured and a swimming pool was added; it was used for fish culture. The cave was then decorated with marbles and mosaics made of glass tiles, with statues portraying Ulysses and his deeds. Tiberio used this residence until 26 a.C. when a landslide frightened him and he choose to move to Capri.
- Museo Archeologico: the collection of this archaeological museum contains marble statues of Homeric inspiration and of II century b. C. Only four episodes have been recognized, among them the blinding of Polyphemus. It is a real marble representation of the Odyssey that helps to learn the myth of Ulysses in ancient art. Maybe all the groups were created by three famous sculptors from Rhodes: Atanodoro, Agesandro and Polidoro, authors also of the famous portrait of Laocoonte in Vatican Museums. Tiberio ordered to these famous sculptors the decoration of the cave. There is also another marble group, a Roman masterpiece made in II century a.C. In the museum there are also other items that decorated the villa (statues of the gods, portraits, mythological representations, etc. ).
- Torri di avvistamento: the sighting towers were built in 1500. The central tower (only a part remains) dominated the village and its profile is now in the coat of arms of the municipality. Torre Truglia is on a rock at the end of the promontory of Sperlonga. It was built in 1532 on a pre-existing Roman tower and a pirate, Khair ad - Din called, Redbeard, destroyed it two years later. It was rebuilt in 1611 and it then gave hospitality to a sergeant and a soldier. In 1623 Turks, again, destroyed it. It returned to life in the following century. Today it contains an important centre about sea life and environment, “Riviera d’Ulisse”. There were two other towers, Torre del Nibbio and Torre di Capovento, built on a rock over the sea in 1532. It was used also as the customs. It was almost completely destroyed, but recently it was built again.
- Oasi Blu:this oasis is a wonderful blue area near Tiberio’s villa and W.W.F. Italia manages it. This protected area is made of a promontory covered by Mediterranean bush. There are some small creeks.
- Chiesa di S. Rocco: a church built in XV century.
- Palazzo Sabella: this palace in 1739 gave hospitality to the antipope Clemente VII, who was escaping after the defeat of Anagni. The façade was rebuilt in XVI century.