Aire Ancient Baths

This subterranean spa in the heart of TriBeCa is known as one of the swankiest spas in the city. It's a unique atmosphere of relaxation where you take a journey through sensations across various baths. Book a private bath enhanced with milk, citrus juice, olive oil or red wine. Keep in mind that special treatments and access to the thermal pools will run you about $450-$500. No wonder celebrities love the place.

Aire Ancient Baths88 Franklin St.

[Photo via @aireancientbaths_us]

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