[Answer] The first indoor shopping mall opened in 1956 in which city?

Step 1 : Introduction to the question "The first indoor shopping mall opened in 1956 in which city?"

...Southdale Center, which opened in 1956 in Edina, Minnesota, is widely considered the first modern, fully enclosed shopping mall. Designed by Austrian-born architect Victor Gruen, the mall was envisioned as more than a retail hub — it was intended to function as a vibrant community gathering place, complete with lush indoor gardens and welcoming social spaces. Southdale revolutionized retail design and paved the way for the rapid rise of the suburban shopping mall across the United States in the decades that followed.

[Answer] What object was pictured in the world's first color photo?

Step 1 : Introduction to the question "What object was pictured in the world's first color photo?"

...The world’s first color photograph, created in 1861 by Scottish physicist James Clerk Maxwell, features a tartan ribbon. Maxwell achieved this groundbreaking milestone by photographing the ribbon three times—each through a different colored filter: red, green, and blue. By combining the filtered images, he demonstrated the additive color process, laying the foundation for modern color photography. Although the final result was faint by today’s standards, Maxwell’s experiment proved that full-color images could be scientifically produced.

[Answer] Tchaikovsky composed an opera named after which playing card?

Step 1 : Introduction to the question "Tchaikovsky composed an opera named after which playing card?"

...Pyotr Ilyich Tchaikovsky’s opera The Queen of Spades (Pikovaya Dama in Russian) premiered in 1890 and is based on a short story by Alexander Pushkin. The dark, psychological drama tells the tale of a man obsessed with discovering a secret gambling formula said to guarantee victory — a secret connected to an elderly countess known as the “Queen of Spades.” The opera masterfully combines haunting melodies and vivid orchestration, showcasing Tchaikovsky’s unmatched gift for blending human emotion with sweeping musical intensity.

[Answer] Which city does not have stop signs?

Step 1 : Introduction to the question "Which city does not have stop signs?"

...Parisians aren’t known for their considerate driving, but it might just be because they don’t have the necessary street signage. Paris is the only major capital in the Western world without a single stop sign. Instead, the city relies on traffic lights and a strict rule known as priorité à droite (“priority to the right”), which gives vehicles on the right the right of way at most intersections. Paris hasn’t always been stop-sign-free. The city did have one stop sign at one point, situated in Paris’s 16th district. Despite this sign’s unique claim to fame, it was removed about a decade ago and never returned.

[Answer] What explorer has a river, bay, and strait all named in his honor?

Step 1 : Introduction to the question "What explorer has a river, bay, and strait all named in his honor?"

...English explorer Henry Hudson is the namesake of the Hudson River, Hudson Bay, and Hudson Strait. In the early 1600s, Hudson embarked on several dangerous voyages in search of a northwest passage to Asia. During his explorations, he sailed up the river that now bears his name in present-day New York and later ventured into the vast Arctic waters of northern Canada. Although his final expedition ended tragically when his crew mutinied, Hudson’s name remains forever linked to some of North America’s most prominent geographic landmarks.