Top 100The only Székely and Unitarian church in the UNESCO fortified-church site: a Gothic church with 1419 frescoes of the legend of Saint Ladislaus, whose fortress villagers still use to store their bacon.
Top 100Romania's only volcanic lake: an almost round sheet of water in the Ciomatu crater, ringed by forest, with a Catholic chapel on the shore and the Mohoș peat bog in the neighbouring crater.
Top 100A natural dam lake formed in 1837, when a mountainside blocked the Bicaz valley; the trunks of the drowned forest still rise from the water, at the upper end of the Bicaz Gorge.
The salt mine of the Land of Salt, with huge leisure and treatment halls 120 m underground, once Romania's most visited. Closed indefinitely since the flood of May 2025.
A spa resort in the Olt gorge between the Harghita and Bodoc mountains: naturally sparkling mineral springs, mofettes, a wellness centre with thermal water and trails up to Falcon Rock.
A mountain spa resort at 900 m in northern Harghita, with carbonated mineral springs you can drink from for free, old wooden villas, travertine caves and a new spa centre.
The Renaissance castle of the Lázár family, with four bastions, a gate tower and walls topped by ornamental crenellations, at the edge of the forest near Gheorgheni; Gabriel Bethlen spent his childhood here.
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