Officially Christ the King Cathedral, though locals call it the Mountain Church for the rocky outcrop it occupies in the city centre. It was built between roughly 1928 and 1933.
The design is Gothic, executed in rough-cut stone left bare rather than rendered — that grey stonework is why it also goes by the Stone Church. Inside are stained glass panels and the pointed arches the style calls for; the bell tower carries a clock facing the busy junction below.
Its elevation makes it a familiar spot for watching the sunset. From the forecourt you look down on the traffic circling the junction, one of the most recognisable urban views in Nha Trang.
The cathedral stands beside Nha Trang railway station, about a kilometre from the Tran Phu strip and walkable from most central hotels. The way up is a short ramp with steps.
Services are still held regularly, so avoid visiting during Mass; times are posted at the gate. Dress as you would for any place of worship. Half an hour covers it, and pairing it with Long Son Pagoda makes a sensible morning — the city’s two largest religious buildings, less than two kilometres apart.