The Ruins of the Cross Kirk can be found just north of the town centre of Peebles. The ruins were once a Trinitarian Priory. The priory was built by King Alexander III of Scotland following the discovery here of a cross and relics of St Nicholas of Myrna.
A fine cross was found on the site of the Cross Kirk in 1241, followed by the discovery of a stone urn containing what some claimed were the remains of St Nicholas. The church was founded there that century to mark the discovery of these sacred items.
The 1200s western doorway is the most significant feature to survive of the church, which stands surrounded by attractive mature Scots pine.
Celje Castle was once the largest fortification on Slovenian territory. The first fortified building on the site (a Romanesque palace) was built in the first half of the 13th century by the Counts of Heunburg from Carinthia on the stony outcrop on the western side of the ridge where the castle stands. It had five sides, or four plus the southern side, which was a natural defence. The first written records of the castle date back to between 1125 and 1137; it was probably built by Count Gunter. In the western section of the castle, there was a building with several floors. Remains of the walls of this palatium have survived. In the eastern section, there was an enclosed courtyard with large water reservoirs. The eastern wall, which protects the castle from its most exposed side, was around three metres thicker than the rest of the curtain wall. The wall was topped with a parapet and protected walkway.