The Baroque Château — After the mid-13th century the town took over the functions of the regional castle of Prácheň. Presumably at that time the town castle was also established, which belonged to the Bavors of Strakonice. During the siege of the castle and town in 1307, Rudolf of Habsburg — successor to the Přemyslids on the Bohemian throne — died here. In the 14th century Horažďovice was held mainly by the lords of Strakonice, then in the 15th century by the lords of Hradec, and from 1458 by the brothers Jan and Racek of Kocov, who rebuilt the castle. Because Racek defied the laws of the land, the castle and town were plundered by imperial forces during the ensuing conflict. Afterwards Horažďovice was acquired by the Šternberks; from the 18th century it belonged to the Mansfelds, Vchynský and other families. The complex consists of multi-storey buildings and buildings with a raised ground floor around a rectangular courtyard, with a low prismatic tower at the north-west corner and an entrance to the courtyard from the square. In front of the tower is a small courtyard with Renaissance arcades (originally on 3 sides; 2 have already disappeared). In the château chapel the original early Gothic castle tower — a cylindrical keep from the 13th century — has been preserved. Inside there is a valuable great hall by the Italian Salomini with a mirrored ceiling and a scene of the Battle of Vyšehrad (created around 1690). At the north-west end of the promontory above the river is a garden from the late 17th century with a hexagonal gazebo.

Church of St. Peter and Paul — On the Horažďovice square stands the Church of St. Peter and Paul, built here in 1260–1273 and partly rebuilt in 1316. The church is open daily from 17:30 before the service, or by arrangement. The original tower was replaced by a new tower in 1836. In 1991–2000, at the initiative of the Association of Natives and Friends of Horažďovice, a collection was held for the restoration of the bells. In 1993 new bells were installed, dedicated to St. Wenceslas and St. Adalbert, together with the original death knell from the late 15th century. A further bell, donated by Mgr. Karel Fořt, is dedicated to St. Gorazd, the new patron of the town, and was placed in the church in 1997. The last of the 4 bells, the 980 kg Peter and Paul, was brought to the town in December 2000, and for the first time all four bells rang ceremoniously over the town at midnight on 31 December 2000 / 1 January 2001, in the complete enharmonic tuning F1–G♯1–B1–D2. Inside the church we can admire a rare Gothic baptismal font in the form of a chalice, and on the altar a late Gothic Madonna from 1775.

The Meat Market — Behind the church are several Meat Market buildings (viewable by prior arrangement), of which two rows stood facing each other here until the fire of 1689.

Monastery Church of the Virgin Mary — On Hus Square the Monastery Church of the Virgin Mary is equally unmissable. It can be visited daily from 8:00 to 18:00. Originally there stood here a chapel of St. Michael from 1330. In its place in 1550 a church dedicated to St. Michael and a Franciscan Friars Minor monastery were built. From 1862 the complex was owned by the Sisters of the Holy Cross; during the Second World War the entire complex served as barracks, and it now houses several educational and medical institutions. At present the second floor of the main building has again been returned to its original purpose after reconstruction, and the Sisters of Notre Dame now live and teach there.

The Town Hall and the Plague Column — On the left of the square stands the town hall building from 1927, which is already the fourth town hall building on the same site. Its predecessor, built in 1690, served its purpose for 236 years! Today it is the seat of the Municipal Office. From the old town hall building the stone coat of arms of the town has been preserved; it is placed on the first floor of the town hall opposite the stairs, along with a large plaque that in 1996 returned to its original place on the town hall façade. Directly opposite the town hall stands the plague column of the Immaculate Conception of the Virgin Mary from 1725, beautifully restored in 1994; a little further on is a stone fountain from 1560.

The Red Gate — Not far from the square stands the third of the town gates and the second oldest gate in the Czech Republic — the Red Gate from 1252. According to its direction it is sometimes called the Prague Gate. In front of the gate there was formerly a moat crossed by a drawbridge.