Tucked away in a downtown Stockholm park are the remains of a World War II defense position.

This gem from the industrial age helps visitors and residents alike traverse hilly Stockholm.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

The remains of a centuries-old water system that inspired local legends of secret tunnels.

Its sunny hues are believed to have inspired the town's color palette.

This highly decorated dam is one of Guanajuato's most unexpectedly beautiful public works.

This once-abandoned mansion is now a dreamy event space.

Kitschy horror displays now fill the house where some very real serial killing took place.

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

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

These enigmatic columns tower over the ruins of an ancient Toltec city.

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

This eerily opulent residential museum is home to a haunting local legend.

One of the city's few vendors selling the Sierra Norte's ancestral beverage lies within a hidden farmers market.

This park's art collection includes a clock made of flowers, siblings in a tree's roots, and a dove made out of weapons.

Get a close look at the gigantic remains of long-extinct mammoths.

Abandoned figurines adorn a small plot on the side of a craft market's entrance.

A unique walk through hundreds of cactus plants, including some that stretch over 8 feet tall.

Mexico City decorates its facades with extravagant floral arrangements every year.

An artist's suburban abode looks like an architectural fever dream.

Explore the history of Mexico's lesser-known ancient alcoholic beverage.

One of the world's largest murals covers a large swath of homes in its hillside neighborhood.

This warehouse-gallery-shop hybrid showcases Mexican craftwork at its best.