This beautiful building in the heart of Manhattan's Financial District was empty for decades.

There’s a secret bunker inside the Brooklyn Bridge, but the city won’t say where.

A popular European tradition makes its way to the states on one of America's most famous bridges.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

A rotating cast of guys and dolls in front of a Washington, D.C. building.

This small-town Connecticut restaurant gives each diner a free book from its vast library.

What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

A mysterious stone embedded at the base of a historic Boston building.

This "life-size" depiction of Mickey Mouse as a half-lobster is both whimsical and a bit creepy, standing guard over the Boston waterfront.

The remnants of a Gilded Age elegance preserved in the middle of a stark modern tower.

A tiny plaque marks the location of the water source that facilitated the birth of modern-day Boston.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

The Boston square dedicated to the dark poet who was born nearby.

Dedicated to the art and science of glass in equal measure, this space is as much laboratory as museum.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

Pluto is still considered a planet in Ithaca, New York.

An abandoned dollhouse factory.

The only intersection in America where the buildings on all four corners were built pre-Revolutionary War.

The oldest continuously inhabited street in America.