Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

A well-preserved example of an early industrial operation in the northeastern United States.

The abandoned ruins of America's first private zoo are open for exploration in the Catskills.

This 19th-century clock has been restored to help withstand the harsh environment of its seaside home.

America's greatest forgotten garden and the former stomping grounds of Son of Sam.

In the power of this waterfall, Alexander Hamilton saw the potential for industry.

The oldest house in Manhattan is now a museum that remembers the home's sordid history of scandals, vice-presidents, and ghosts.

This castle-like building in Manhattan helped destigmatize cancer in the 19th century.

This small New York museum celebrates the mountainous artwork of a Russian mystic.

Beautiful mosaics cover the first stations opened on New York City's newest subway line.

This hidden library of physiological ephemera contains centuries worth of knowledge on the vim and viscera of the human body.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

Time travel with sweets across history at this research-based candy store.

This advertisement for talcum powder was painted on the rock face and has since defied removal.

North America’s largest collection of horological devices and home to a colossal clock with a dizzying array of features.

The oldest farmer's market in America is so ancient it was approved by the King of England.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

This English-inspired Maryland garden is home to acres of opulent plant life including bushes shaped into an entire fox hunt.

Every autumn, this hillside is ablaze with red summer cypress.

The world's largest drain sits below the city of Kasukabe, Japan.

Every color in the rainbow awaits.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

Stretching for 22 miles, the world's longest tree-lined avenue dates back to the early 17th-century.

This subterranean spot might be the epitome of Japan's baroque, retro coffee houses.