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

The winter home of millions of migrating monarch butterflies.

A quirky and charming restaurant founded by artists.

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

High atop a Mexican rainforest mountain, this ancient pyramid once drew pilgrims countries away.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

A church dedicated to the Mexican skeleton saint.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

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

Every equinox this Maya pyramid puts on a spooky ancient light show.

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

Part bookstore, part café, and part forest.

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

These azure waters were thought to lead to the Mayan Underworld.

Frida Kahlo's childhood home, now a museum of her life and works.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

Taste the white whiskey that the United States' first president once distilled and enjoyed.

Hop on the train and tour an elaborate miniature town made completely of junk (including the train).

An overgrown garden stands as a grim marker of an unrealized dream.

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.

Built to defend Washington D.C. during the Civil War, this fort became a post-war nucleus for a thriving Black community.

This monument is dedicated to those lost on June 6, 1944, in the town with that day’s highest per-capita casualty rate.

This train station inspired the name of a 1970's rock band and provided the backdrop for their album cover.

This Federal-style plantation house was once visited by Abraham Lincoln to meet with generals during the Civil War.