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.

A museum in the former home of Marxist revolutionary Leon Trotsky.

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

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

Meant to be one of the most extravagant hotels in the world, now an eerie, abandoned architectural gem in Mexico City.

Bar full of oddities, specimens, artifacts and homages to the great dime museums of the past.

This lovely pocket park is one of the most under appreciated in D.C.

The house where John Wilkes Booth conspired with his co-conspirators.

Home to a vast and influential collection of Shakespeareana.

When it opened during the final years of the embargo, all the drinks and cigars were free.

The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.

A painfully obvious spy house sits right across the street from the Russian Embassy.

A wondrous old library overlooking the nation's capital.

Home to items never before seen by the public.

The mansion home of author Edith Wharton.

Stay at this storybook estate, featuring Sir Henry Hudson Kitson's masterpiece "Gingerbread House."

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

These millennia-old murals once covered the walls of residential complexes across the ancient city.

In the Valley of Morelos lies a mysterious Olmec site with signs of jaguar veneration.

These strikingly colorful paintings were created by a mysterious Mesoamerican civilization.

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

The largest collection of artifacts from the Olmec civilization, the mother culture of Mesoamerica.

Local lore claims this rocky cape hides a lost Aztec treasure.

A statue of the formerly enslaved person considered "the first liberator of the Americas" stands in the town named after him.