A window into a long-lost world, these colorful tiles advertise a long-defunct range of purgative teas, harmless smokables, and diarrhea cures.

This funky former tobacco factory is one of the most striking examples of Madrid's cultural diversity.

Discarded animal sculptures stand forgotten by an abandoned aquarium and water park in Bosque de Chapultepec.

This industrial Art Nouveau gem is a historic hotspot for Mexican counterculture.

A fabulously bizarre surrealist sculpture by the late artist Leonora Carrington.

This museum houses two of Mexico's most impressive Aztec monoliths.

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

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

The burial place of some of Mexico's most prominent residents is full of macabre stories and hidden masonic symbols.

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

After being abandoned for decades, Oklahoma’s first air-conditioned theatre was reborn in the new century.

This small statue hints at the incorrect origins of the lush landscape park surrounding it.

An ancient tree that was once the favorite of a young Swedish royal.

A golden plaque marks the site of the mysterious unsolved assassination of the former Swedish prime minister.

A king's bloodstained shirt is among the gruesome collection of artifacts displayed below Stockholm's Royal Palace.

This small museum nestled inside a souvenir shop is dedicated to Sweden's most well-known toy.

Located in an old church, this brewery produces a different kind of holy water.

This red light district plaza memorializes the Fab Four and their historic connection to the area.

The F1 Mexican Grand Prix circuit goes right through the middle of this old baseball stadium.

This giant expressionist head crowns a museum devoted to a beloved Mexican leader.

Hidden for more than a century, the grave of the Conquistador remains forgotten behind these church walls.

Come face to face with the ferocious visage of the serpent-headed mother goddess of the Aztecs.

The underground mall's skylights look like they could be part of a spaceship.

Once home to an aristocratic family and a workers' organization, this intricately tiled building now houses a chain restaurant.