This narrow street is packed with street vendors and bars selling chicha.

This tiny shop has been serving traditional tamales for more than 200 years.

The mysterious empty cupola behind the monumental arch points to an ancient prophecy of Delhi.

India's first open-air public art district sits in the heart of the country's capital.

A favorite haunt of Delhi's politicos and intellectuals, this old-school coffee shop was shut down under Indira Gandhi's Emergency.

Known as the leaning temple, the sacred structure has somehow developed a severe nine-degree slant.

The beautiful 16th-century stepwell lies in the shadow of a famous fortress.

The roof of one of the world’s largest spice markets provides a grand view over the neighborhood's glorious bustle.

Siddhartha Gautama sat here and received enlightenment.

A centuries-old fortress city lies in ruin.

Nestled among the artifacts of the National Crafts Museum, this hidden gem offers hard-to-find regional foods from all over India.

This ancient Hindu temple is covered in thousands of colorful statues and has a long mythological history.

Hidden in the shadow of a rocky fortress is one concubine’s long-forgotten legacy.

A startling, centuries-old subterranean marvel hides in plain sight.

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

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

Known as the "Dodo Manège," this carousel features a herd of animals that have disappeared—or may be gone soon.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

An Art Nouveau gem hides beneath the layers of city grime obscuring this once-magnificent building.

Live a night as a Byzantine King, with a minibar and private jacuzzi.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

One of the newest mosques in a city filled with thousands.

It's believed that this small church was connected to the Hagia Sophia via a secret tunnel.