Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

Abandoned Coast Artillery fort now serves as a graffiti canvas and sightseeing vantage point.

Off a hiking trail in Rhode Island stands a picturesque memorial to a long-forgotten war.

Whale bones, scrimshaw, and sperm oil make up just a part of this comprehensive collection of whaling history.

An abandoned Gold Coast-era mansion once intended for the exiled ruler of Albania, who never arrived.

Spies, love letters, and ghost stories have all left their mark on this home-cum-museum.

A millionaire's abandoned swimming pool from the gilded age of one of America's most distinguished families.

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

This small-town pizzeria won the Hollywood lottery.

A former poultry store that looks like a giant duck and is one of the "seven wonders" of Long Island.

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

The second oldest continuously operating bar in Louisiana.

This "second" cemetery represents New Orleans' attempt to keep cholera at bay.

A real (but thankfully not live) missile stands tall as a monument to the United States military in the small town of Cordele.

This historic oak tree has been around for over 300 years and might last for 300 more so long as it doesn't fall apart first.

This phone booth-sized municipal building has been a piece of police property for more than half a century.

Off of the Crawfordville Highway in Florida, nature is taking back this decrepit row of Ford trucks.

This elegant Colombian fortress was one of the torture headquarters for the Spanish Inquisition.

Cathedral carved out of salt, located a mile below the Earth's surface.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A monument celebrating the idea of reaching inaccessible places.

Neo-cave art on the macro scale.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.