Smallest house in Toronto sits on a lot meant to be just wide enough for cars to drive through.

The headquarters of a secretive order is also a beautifully-designed park.

In this case, 'zero' marks the spot where the iconic Old Spanish Trail ends.

The fountains of the U.S. Navy Memorial are annually salted with water from the Seven Seas as part of a nautical ritual.

Helen Keller once broke ground on this historic center for the study of technologies to benefit the hearing impaired.

Daily lunch spot for many of Washington, D.C.'s cab drivers.

Once the supplier for noteworthy projects like the National Cathedral, this old brickworks now lies abandoned.

The famous abolitionist’s preserved estate is one of Washington's finest monuments to its great Black citizens.

The "Jade Museum" is full of thousands of intricately carved works of art made from various precious stones.

This homegrown adoption center offers a wonderland of feline companionship.

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

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

A fairy garden in an old hotel hidden in La Marquesa forest.

CDMX's home for the world's culinary delights.

Stained glass windows bathe this botanical garden in cosmic light.

The ruins of an ancient city built by Mayan traders is centered around a temple of a sacred feathered serpent deity.

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

An indigenous take on European design creates a stunning visual overload.

The jewel of western Mexico's archaeological legacy is this tiered circular pyramid now covered in grass.

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

The winter home of millions of migrating monarch butterflies.

The famous artist couple lived and worked here, in two different houses separated by a bridge.

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

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