One of the most recognizable buildings on the planet, the Taj Mahal was declared one of the New Seven Wonders of the World in 2007. 

Mughal Emperor Shah Jahan commissioned the mausoleum in memory of his wife Mumtaz Mahal, who died during childbirth in 1631, and its designer was the talented architect Ustad Ahmad Lahori. A large part of what makes the Taj Mahal so striking is its 75-foot-tall gleaming white marble dome, a type dubbed an "onion dome" due to its shape and color. The inlay work of precious stones, floral design, and intricate motif is impressive. Interestingly, the dome's design also causes a single note from a flute to echo five times due to the unique acoustics. Four smaller domes and four minarets cluster around the largest one in the center, which reaches a commanding height of 240 feet.

5 Spooky Small U.S. Towns You Need To Visit

Across the U.S., there are some small towns with spooky histories and eerie legends — from ghost sightings to unsettling local folklore — that give them a spine-tingling edge. These are five of the spookiest towns in America. 

7 Items Flight Attendants Always Pack in Their Carry-On

For flight attendants, long layovers, last-minute trips, and changing climates are part of the job — which means they need to be prepared for just about anything. From must-have essentials to surprising items you probably haven't thought of, these are the items that flight attendants always pack in their carry-on bags.