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

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

This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

This curved Manhattan building was built to house the opulence of John D. Rockefeller's oil empire.

This abandoned subway station can still be seen on regular commuter trips.

Hidden in one of New York's oldest subway stations is the final remnant of the site of the bizarre Shakespeare Riots.

Nikola Tesla's former home contains an homage hidden from plain sight.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

A Biblically notable site over the ruins of an ancient city that is now a protected World Heritage site.

This sprawling bookstore spans four floors and has more than a million books in stock.

One of the camera company's former manufacturing buildings is now a museum dedicated to its history.

These grassy undulations on a stretch of University of Michigan campus aren't bad landscaping, they're art.

A watercolor recreation of a famous fresco unearthed at Pompeii.