Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

Elevated freight railway turned wildly successful urban park.

A grand New York post office that is home to mailman Santas, scraps of postal history, and a pneumatic mail system.

Spinning silently in the lobby of an Art Deco masterwork is a massive vintage model of the Earth.

A self-made museum in Queens, New York continues to display the work of a sculptor known for paving his own way.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.