Highlights
- Rayakottai Fort — A dramatic ASI-protected hill fort rising over the plains near Rayakottai, strengthened during the era of Hyder Ali and Tipu Sultan and contested in the Anglo-Mysore Wars. The steep climb to its ramparts is one of the district's most popular short treks.
- Mallachandram Dolmens — Spread across two hillocks near Samalpallam, about 19 km from Krishnagiri town, Mallachandram is one of Tamil Nadu's largest megalithic burial complexes, with more than 200 dolmens (stone burial chambers) dating to roughly 1200-300 BCE. Excavations here have yielded black-and-red ware pottery, iron objects, cairn circles and urn burials, and some slabs carry rare prehistoric white-ochre rock paintings depicting hunts, houses and rituals. It is a protected Archaeological Survey of India site, though many chambers were damaged by treasure-hunters over the years. Reaching it involves a short walk up the rocky hillocks from the village.
- Sri Prasanna Varadaraja Perumal Temple, Shoolagiri — This ancient Vishnu temple sits at the base of the Shoolagiri hill in Shoolagiri town. Local tradition dates its origins to the Dwapara Yuga and links its consecration to Arjuna during the Pandavas' exile, making it a revered stop for pilgrims. The hill setting and long-standing legend give the shrine both religious and scenic appeal. It is an easy detour just off NH44 between Krishnagiri and Hosur.
