Elevated freight railway turned wildly successful urban park.

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

The world's oldest hologram gallery and the labyrinthine laser laboratory of a holography pioneer.

Unusual books about food and drink abound in this 19th-century New York townhouse.

The best way to get a sneak peek at the movies.

The only gallery in New York dedicated to olfactory art and the exploration of scent in art.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

Dine on dumplings at the oldest dim sum restaurant in New York.

Behind a grungy bodega facade, a Poblano family serves rich, home-cooked meals.

America's oldest Eastern European synagogue provided the immigrants of crowded Lower East Side tenements a space of sanctuary.

Home to some of the last true noodle artisans in New York.

Cooks at this tiny takeout spot grind their rice flour in a stone mill each morning for perfect cheung fun.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

Prove you deserve to be fed by Kenny Shopsin.

The competition: breathe deeply as long as you can.

The oldest surviving synagogue in New York City is now a soaring art space.

A veritable variety of odds and ends.

Spiral-bound community recipes and antiquarian gems mingle at this small East Village shop.

Love, knishes, and best wishes from this legendary Lower East Side bakery.