How big is 4.1 city blocks?

Seal Island, named for the tens of thousands of Cape Fur Seals that live there, measures about 0.370 city blocks. The large number seals attract great white sharks, who circle the island in a so-called "Ring of Death."

Housing the presidency, the White House occupies six stories and a total of 0.290 city blocks of floor space. This space includes 132 rooms, 35 bathrooms, 28 fireplaces, and 3 elevators, as well as a tennis court, bowling alley, movie theater, jogging track, swimming pool, and putting green.

Per NFL rules, a football field should measure 109.728 m (120 yards) long by 48.768 m wide, for a total area of 0.24650889550 city blocks. Due to a blizzard, the first NFL playoff game in 1932 was held indoors in Chicago Stadium (it was also the first indoor game) on a field measuring just 55 m by 40.0 m, for a total area of 0.10134512620 city blocks.

One of the largest homes in the world, Bill and Melinda Gates' home has a total area of 0.20610 city blocks, including 7 bedrooms, 24 bathrooms, 6 kitchens, 6 fireplaces, a 0.0106 city blocks gym, a 0.004146 city blocks dining room, and a 0.008753 city blocks library. It was designed by Bohlin Cywinski Jackson, the same architectural firm responsible for the design of one of Apple Inc's flagship stores on Fifth Avenue in New York City.

One of the smallest nations in the world, Monaco is a city-state located on the French border of the Mediterranean Sea, which measures 95.80 city blocks in total area.

The most visited park in the country, Central Park has an area of 157 city blocks. According to a 2005 appraisal, the real estate value of the Park's land is $528,783,552,000.

Ninoy Aquino International Airport covers a total area of 200 city blocks, including four terminals. The total length of the airport's two runways is 5,995 m.

Per National Hockey League Official Rules, a hockey rink should measure 60.96 m long by 25.908 m wide with a corner arc radius of 8.5344 m, for a total area of about 0.0698741819 city blocks. Ice hockey is believed to have developed from field hockey after players began holding games on ice rinks, which had been traditionally used for the sport of curling.

Chennai International Airport covers a total area of about 246.60 city blocks, including four terminals and other outbuildings. The airport offers a total of 6,587 m runway length between its two main runways.

The British overseas territory Gibraltar is located at the southern tip of Spain overlooking the Mediterranean Sea at the Strait of Gibraltar and measures of 300 city blocks in total area. It is renowned as the home of the Rock of Gibraltar (a.k.a. Calpe, a.k.a. Jabal al Tariq), a well-known tourist attraction.

Manchester Cathedral includes a total interior area of 0.05703 city blocks between the Nave, Chapel, Library, Chapter House, and Rectory. The height of the Cathedral's bell tower is 41.1 m.

The United States Bullion Depository, commonly referred to by the metonym "Fort Knox" (in spite of the fact that the Depository is not located on the Fort proper), measures 32.0 m (105 ft) by 36.9 m (121 ft), for a total area of about 0.0544 city blocks. The Depository is most famous for housing the largest portion of the national gold reserve, but has also temporarily housed the original US Declaration of Independence, an original copy of the US Constitution, and other important documents, kept there for safe keeping during World War II.

London-Gatwick Airport covers 310 city blocks in total area. The airport offers a single runway with a total length of 3,316 m.

Sydney Kingston Smith Airport covers a total area of about 400 city blocks, including three main terminals. The airport offers 8,930 m of total runway length.

Frequently called "the best island in the world," Boracay Island measures 475.40 city blocks. The most famous destination of the Island is the 4-km-long White Beach.