Crumbling remnants of what was once a booming town full of silver.

A wealth of pop culture statuary and green chile dishes give this roadside restaurant clout.

Explore a misty river canyon from a metal bridge system.

A reproduction of earth's many biomes.

An off-the-beaten path cave with an underground lake.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

A posh members-only club with a literally dramatic history.

A New York garbage depot holds a secret collection of weird and wonderful refuse.

This abandoned caretaker's apartment is one of 13 left in the New York Public Library system.

The "Seinfeld" diner.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

A crumbling hospital from the 1850s on Roosevelt Island.

A terrific purveyor of natural history objects and curios.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.