An architect in Aspen used psychedelics as his muse while building this mushroom masterpiece.

When ecosystems collide in the arid Southwest.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

This sidewalk tribute honors Colorado's great culinary creation.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

The classic Atari game's iconic aliens have invaded downtown San Diego.

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

Weighing nearly 7 tons, this massive sculpture was carved out of 500-year-old wood and decorated with thousands of jewels.

Constructed in 1857, mourners used these towers to burn offerings of paper prayers and gifts for the afterlife.

This 200-meter-high waterfall marks the site of Achilles’s immortal baptism at the mouth of the River Styx.

This empty Victorian manse on Staten Island is said to be haunted but is actually a real life crime scene.

Named the fifth most beautiful building in America in 1885, this former courthouse boasts the best view in the Village.

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

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

A basement pool hall is the front for some of the best Dominican food in New York City.

A garment factory hides a small Dominican eatery in the hallway to its freight elevator.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

Tucked in the back of this amazing antique store is an important piece of medical history.

Spiral-bound community recipes and antiquarian gems mingle at this small East Village shop.

Manhattan's deadly West Side railroad, which killed hundreds of New Yorkers, is remembered by this simple plaque.

This Russian bar-restaurant lies within a three-story underground bathhouse.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

Unusual books about food and drink abound in this 19th-century New York townhouse.