It's about 5,000,000,000,000,000 times as long as The Hollywood Walk of Fame.
In other words, the length of The Hollywood Walk of Fame is 0.000000000000000200 times 641 parsecs.(Hollywood Boulevard and Vine Street, Hollywood, California) (approximate length)
The Hollywood Walk of Fame is approximately 0.000000000000130 parsecs. Gene Autry, most famous as the singer of "Back in the Saddle Again" and as the writer and singer of "Here Comes Santa Claus," is the only entertainer to have a star in every category — film, television, recording, radio, and theater. One of Autry's stars is also one of only two stars which have been stolen from the Walk and never recovered.
It's about 5,000,000,000,000,000 times as long as The Indianapolis Motor Speedway.
In other words, 641 parsecs is 4,916,090,000,000,000.0000000000000000000000 times the length of The Indianapolis Motor Speedway, and the length of The Indianapolis Motor Speedway is 0.0000000000000002034140 times that amount.(Speedway, Indiana) (rectangular oval course)
The rectangular oval course of the Indianapolis Motor Speedway is 0.0000000000001303880 parsecs. While famous for its automotive racing, the first motorsport held at the track was a series of motorcycle races in August, 1909 — a little less than two years before the inaugural Indianapolis 500 race was run.
It's about 5,000,000,000,000,000 times as long as Daytona International Speedway.
In other words, 641 parsecs is 4,916,090,000,000,000.0000000000000000000000 times the length of Daytona International Speedway, and the length of Daytona International Speedway is 0.0000000000000002034140 times that amount.(Daytona Beach, Florida) (tri-oval course)
The tri-oval course of the Daytona International Speedway, upon which the NASCAR Daytona 500 is run, is 0.0000000000001303880 parsecs in length. Although the tri-oval design is said to allow for greater visibility during the race, the real reason for the then-unique design was that plot available for construction of the track was only 350 acres and could not accommodate a traditional oval layout of appropriate length.
It's about 4,000,000,000,000,000 times as tall as a Puncak Jaya.
In other words, 641 parsecs is 4,050,000,000,000,000.0000000000000000000 times the height of a Puncak Jaya, and the height of a Puncak Jaya is 0.00000000000000024690 times that amount.(a.k.a. Mt. Carstensz, a.k.a. Carstensz Pyramid, a.k.a. Nemangkawi, a.k.a. Carstensz Toppen, a.k.a. Gunung Sukarno) (Papua province, Indonesia)
The highest point in Oceania (and therefore one of the seven summits) peak of Puncak Jaya is 0.00000000000015830 parsecs. Dutch explorer Jan Carstenszoon, the mountain's namesake, is said to have been ridiculed for claiming to have seen snow near the equator when he reported his discovery of the peak in 1623.
It's about 4,000,000,000,000,000 times as tall as a Vinson Massif.
In other words, 641 parsecs is 4,043,000,000,000,000.00000000000000000000 times the height of a Vinson Massif, and the height of a Vinson Massif is 0.00000000000000024730 times that amount.(a.k.a. Mount Vinson) (Antarctica)
Mount Vinson, the highest peak of the Vinson Massif mountain, reaches 0.00000000000015850 parsecs at its peak. The mountain is named after Georgia Congressman Carl Vinson who emphatically promoted Antarctic exploration in the 1930s.
It's about 7,000,000,000,000,000 times as long as The National Mall.
In other words, 641 parsecs is 7,000,000,000,000,000.000000000000000000 times the length of The National Mall, and the length of The National Mall is 0.0000000000000001000 times that amount.(Washington, D.C.) (to Lincoln Memorial)
From the steps of the Capitol Building to the Lincoln Memorial, the National Mall is 0.0000000000001000 parsecs. On December 4th, 2008, the entirety of the Mall was declared open to the public for the first time in American history in anticipation of the estimated two million visitors to the Mall for the inauguration of President Barack Obama on January 20th, 2009.
It's about 8,000,000,000,000,000 times as long as Steel Dragon 2000.
In other words, 641 parsecs is 7,979,000,000,000,000.00000000000000000000 times the length of Steel Dragon 2000, and the length of Steel Dragon 2000 is 0.00000000000000012530 times that amount.(a.k.a. スチールドラゴン2000) (Nagashima Span Land; Kuwana, Mie Prefecture, Japan)
The roller coaster Steel Dragon 2000 is 0.000000000000080340 parsecs in length. It is one of only two operating "Gigacoasters" (meaning its height is between 0.0000000000000029630 parsecs and 0.0000000000000039410 parsecs) in the world, having a height of 0.0000000000000031440 parsecs.