This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

An abandoned church gets a second life as a massive beer hall and event space.

A museum dedicated to exhibiting remarkable outsider art.

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

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

The small first-floor apartment where the author wrote her Pulitzer Prize-winning book 'Gone with the Wind.'

The name of this tiny pocket park tucked between two buildings on Manhattan's Upper West Side is Latin for its location: "seventy-one."

A disquieting Aztec sculpture displays hundreds of stone skulls representing the victims of human sacrifice.

Deep scars on the earth left by the Ice Age.

A touching tribute to the "Queen of Soul."

One of the remaining markers of an era when Brooklyn and Flatbush were separate cities.

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

A B.Y.O.B. Mexican cantina lives inside one of the last tortilla factories in Brooklyn.

A once grand hotel is being retaken by the wilderness it once capitalized on.

This massive melon is a recreation of a similar gate from the Pan-American Expo.

The only subway station in the city that still makes use of gap fillers.

An aptly-named street near the birthplace of the modern LGBT rights movement.

More than 350 million years ago, western New York was covered in a vast sea. Today, you can dig up the remains of the plants and animals that lived there.

Learn about the last river many crossed to find freedom from slavery in the United States.

Headquarters of the world's fourth largest Hasidic sect and the first of many "770s" around the world.

The highest rapid transit station in the world.

Nine nice parcels of land along a flight path offer a quiet respite... until a plane soars overhead.

Golden plates containing what would become the Book of Mormon were believed to be buried on this New York hillside.

This magnificent herd of stampeding elephants has been frozen in time for over a century.