The Mike O'Callaghan–Pat Tillman Memorial Bridge is an arch bridge in the United States that spans the Colorado River between the states of Arizona and Nevada. The bridge is located within the Lake Mead National Recreation Area approximately 30 miles (48 km) southeast of Las Vegas, Nevada, and carries U.S. Route 93 over the Colorado River.

Filippo Negroli (ca. 1510–1579) was an armourer from Milan. He was renowned as being extremely skilled, and may be considered the most famous armourer of all time. Working together with his younger brothers Giovan Battista (ca. 1511-1591) and Francesco (ca. 1522-1600) in the Negroli family workshop headed by their father Gian Giacomo Negroli (ca. 1463-1543), Filippo was specialized in repoussé of armour, whereas his brother Francesco was renowned for his damascening skills.

Titicaca or Titiqaqa is a large, deep lake in the Andes on the border of Peru and Bolivia. By volume of water, it is the largest lake in South America. Lake Maracaibo has a larger surface area, though some consider it to be a large brackish bay due to its direct connection with the sea.

Slovenian artist Franc Grom, aged 72, makes unbelievably intricate egg sculptures using just a tiny electric drill and enormous patience. According to National Geographic, when finished, each egg contains approximately 2,500 to 3,500 holes. While Slovene artisans usually paint their eggs using a technique called drsanka by lightly scratching intricate patterns into the surfaces of colored eggs, carving them was solely Grom’s idea.

During the feudal times, the society was very structured where everyone knew their place. Fishermen knew that they would always have to bend their knee for highborn ladies and gentlemen, while the latter considered themselves to be far too superior to even look at the common folk. Mont Saint-Michel is a living memorial of those times. Its structural composition clearly reflects the structure of feudal society: The monastery and abbey were built on the highest point; housing and stores were built some distance below; finally, fishermen’s and farmer’s houses were constructed, not even being within the city walls, making them the most vulnerable to the possible attack.