Mineral deposits found in the Nha Trang area are believed to have natural curative properties, which can be experienced first-hand at the city's several reputable 'mud spa' centres. Services range from the possibility of, quite literally, bathing in mud, to experiencing a full-on treatment in combination with a massage or other beauty procedures. Spa packages are offered at most centres and are incredibly great value. Some of the best-known spa centres include Thap Ba Hot Springs (with private baths available, as well as waterfalls and thermal pools with both warm and cold water); iResort (another large complex, plus water slides), 100 Egg Mud Bath, and – if you're too short on time to make the trip outside of town to one of the larger complexes – Galina Mud Bath right downtown.

In 1996, American artist James Turrell designed the Celestial Vault to showcase the sky in all its glory using an innovative astronomical optical illusion. In the centre of this grassy artificial crater, there is a stone bench on which visitors can lie to observe the sky as a curved dome, emphasising the way light affects how we perceive things and inviting those willing to challenge their own perceptions.

This is an exquisite early 1900’s Art Nouveau palace – the most ornate in Poland – with stained-glass windows, gorgeous wood detailing and glamorous chandeliers. A small art gallery (part of the Municipal Gallery of Art) is currently housed inside.