Downtown Minneapolis mixed art and function by turning some of their sewer covers into works of art.

A butcher shop in Minneapolis has all the meats and cheeses you’d expect from any of its kind—except that all the products are vegan.

These molds for fiberglass statues have formed an eerie, accidental sculpture park.

An immersive art experience built by local arts collaborative, Factory Obscura, in the building formerly known as The Womb, a psychedelic arts center founded by the frontman of the Flaming Lips.

The oldest house in Lindsborg, Kansas, includes some fascinating inscriptions.

An Aztec temple, the largest man-made pyramid in the world, sits buried in earth with a Spanish church set on top.

Hidden inside a hotel is a museum of miniature models depicting the traditions and history of Mexico.

The first public library in the Americas has more than 45,000 books dating back to the 15th century.

The "world's smallest volcano" has been used to store meals and dispose of dead bodies.

The splendor of this 17th century golden chapel has led it to be called the "eighth wonder of the world."

This cluttered cantina is famed for its cheese-spiked, raisin-flavored liqueur.

The cuisine at this Sheepshead Bay spot tells the story of a displaced Muslim Chinese community.

This old cement mine has been used as everything from a mushroom farm to a recording studio.

A visionary, futuristic sculpture in Los Angeles that never met its extraterrestrial potential.

The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

Nonprofit art center that promotes outsider, intuitive, and self-taught art.

This quirky curiosity shop takes its cues from the world's bazaars.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

The miraculous hydrant that saved the Mission District in 1906.

This one-block alleyway is stuffed with street art that is colorful, cultural, and intensely political.

This print shop boasts one of the largest pinball arcades in San Francisco.

An artsy hidden staircase leads to breathtaking views of San Francisco.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.