The Knighthood Building was built by von Dellingshausen at the end of the 18th Century and today, it accommodates the County Government of Saaremaa. At the beginning of the 19th Century, the house belonged to the Nobility of Saaremaa, then in 1912, to the Noblemen's club. The County Government of Saaremaa bought the house in 1920. The foundation of the building is symmetrical, with a high socle floor. The façade is proportionately divided by three protuberances, the central of which is crowned by a bow-shaped pediment. The balcony with dolomite marble columns and an iron balustrade decorates the façade.
The Temple of Portunus or Temple of Fortuna Virilis ('manly fortune') is one of the best preserved of all Roman temples. Its dedication remains unclear, as ancient sources mention several temples in this area of Rome, without saying enough to make it clear which this is.
The temple was originally built in the third or fourth century BC but was rebuilt between 120-80 BC, the rectangular building consists of a tetrastyle portico and cella, raised on a high podium reached by a flight of steps, which it retains.
The temple owes its state of preservation to its being converted for use as a church in 872 and rededicated to Santa Maria Egyziaca (Saint Mary of Egypt). Its Ionic order has been much admired, drawn and engraved and copied since the 16th century. The original coating of stucco over its tufa and travertine construction has been lost.