Opulent downtown movie theater now houses cars as an indoor parking garage.

To truly appreciate Detroit's landmark skyscraper, you have to step inside.

This feline raises a friendly paw at drivers barreling toward the freeway.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

It celebrates a very stinky task and salutes London's fatberg-vanquishing team.

This two-legged horse statue celebrates a beloved cartoonist and his quirky characters.

The old tradition of drying laundry on poles in the public green is still guaranteed by Glasgow city law.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

A serene public space nestled within the remains of Glasgow’s Victorian maternity hospital

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

A scattered trail of street art adds a pop of color to the city's stark structures.

Climb this overlooked gem's spiral staircase and you'll be rewarded with spectacular views of Glasgow.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

This vast masterpiece of Moroccan architecture spreads across 20 acres.

Deliberately hidden for centuries, the magnificent Saadian Tombs were eventually uncovered in 1917.

This amazing oasis of art and plants is hidden on the outskirts of Marrakesh.

The oldest monument in Marrakesh and the city's only surviving example of Almoravid architecture.

The largest madrasa in Morocco once housed more than 900 students within its exquisite walls.

It took 40 years to build this Eden-like garden in Marrakech, later restored by Yves Saint-Laurent.

A marine aquarium with an astounding variety of fish hides in the basement beneath the famous Palm House.

Tucked inside a South Bank bar is an epic expressionist chronicle of the 20th century.

The famous polar explorer stands outside the Royal Geographical Society's headquarters.

The medieval woodcut-style artwork chronicles life in medieval London.