Built in the 1970s, this curious modular home found new life as a sundae-shaped ice cream stand.

This bar hosts an ever-evolving napkin art installation devoted to an American president.

This kitschy tavern is also home to rare early editions of "Treasure Island."

These light, hollow rolls have been linked to Acadia National Park since the 1890s.

This architectural onion has an original 1930's Jerry O'Mahony dining car at its core.

The first bridge observation tower in the U.S. offers one of the best views of Maine.

Accessible only by boat, this centuries-old island fort never saw troops or combat.

Worm salt and other local ingredients are on the menu at this cult favorite ice cream shop.

This warehouse-gallery-shop hybrid showcases Mexican craftwork at its best.

Beneath the most controversial monument in Mexico City is a cultural center that exhibits only digital art.

This one-window stand has been home to a giant vat of slowly simmering meats and an array of unique tacos for almost 50 years.

An airy Art Deco space devoted to the weird and wonderful folk art traditions of Mexico.

This old-school café is famous for serving coffee, chilaquiles, and the Cuban Revolution.

Gilded heaven for philatelists and architecture freaks, still in full working order despite sitting atop tremulous ground.

Where layer cakes tower above one’s head and there is never a shortage of icing.

Visiting this cacophonous collection of vintage novelties is like stepping into the mind of a crazed toymaker.

Diego Rivera's massive tiled fountain and failed infrastructure project.

Superstitious? Discover the witchy side of Mexico through its largest esoteric market.

66,000 pieces of art, donated by one of the world's richest men.

A jaw-dropping "megalibrary" that turns book-browsing into a geometric adventure.

A historic neighborhood church is reborn as a psychedelic arts collective.

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.