Blink and you’ll miss Mmuseumm, a teeny collection of curiosities inside a disused elevator shaft, on Cortlandt Alley in TriBeCa. Because of its size, the museum houses smaller artifacts than you’d find at the city’s more sprawling institutions, but they’re thoughtfully curated to tell big, important stories. In 2025, for example, its Rubble exhibit displayed chunks of debris from conflicts in Palestine, Israel, Ukraine, Lebanon, Iran, and more. Mmuseumm is open Friday through Sunday, 11 am – 6 pm.