This Aztec structure remained hidden until the demolition of a supermarket exposed the lost temple.

Many people don't realize there’s a lot going on in—and below—the world’s tallest triumphal arch.

A series of abstract sculptures pop up from an otherworldly volcanic landscape.

Get a privileged view over Mexico City's Historic Center from a terrace right in its heart.

A barbarous band of serpents guard the bases of these Aztec temples.

This incredible college library is a visual masterpiece of mosaic art. It also looks kind of like a giant boombox.

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.

By night, this auto repair shop turns into a taquería serving up some of the city's finest al pastor tacos.

Few of the many visitors to this resort town know of its hidden Maya ruins.

A quirky and charming restaurant founded by artists.

These biodiverse university gardens form a green oasis amid the urban chaos of Mexico City.

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

These haunting ruins of a 700-year-old Prehispanic city have witnessed centuries of wars and massacres.

The only castle in North America to ever house European sovereigns.

Explore the atmospheric ruins of an abandoned convent in the dense forests of Mexico's first national park.

This restored colonial house was once home to the botanist responsible for bringing avocados to the U.S.

Part bookstore, part café, and part forest.

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.

Paris' linguistic guide to the international language of, yes, love.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.