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World record longest flight of an arrow from a bow (2010) (484 m)...

: Length overall of a `49er` racing dinghy (4.88 m) ...

Length of the longest canal tunnel (Rove Tunnel in France) (7.12 km)...

: Length of a Boeing 747 airliner (70.7 m) ...

Length of the Trans-Canada Highway from Victoria to St John's City (7,820 km)...

: Length of the Panama Canal (77 km) ...

Height of Olympus Mons (Mars) (21.9 km)...

: Height of the Hoover dam wall (221.4 m) ...

Length of the Indus River (3,180 km)...

: Narrowest width of the English Channel (32.3 km) ...