Bhutan
lowest point: Drangme Chhu 97 m
highest point: Kula Kangri 7,553 m
Bolivia
lowest point: Rio Paraguay 90 m
highest point: Nevado Sajama 6,542 m
Bosnia and Herzegovina
lowest point: Adriatic Sea 0 m
highest point: Maglic 2,386 m
Botswana
lowest point: junction of the Limpopo and Shashe Rivers 513
m
highest point: Tsodilo Hills 1,489 m
Bouvet Island
lowest point: South Atlantic Ocean 0 m
highest point: Olav Peak 935 m
Brazil
lowest point: Atlantic Ocean 0 m
highest point: Pico da Neblina 3,014 m
British Indian Ocean Territory
lowest point: Indian Ocean 0 m
highest point: unnamed location on Diego Garcia 15 m
British Virgin Islands
lowest point: Caribbean Sea 0 m
highest point: Mount Sage 521 m
Brunei
lowest point: South China Sea 0 m
highest point: Bukit Pagon 1,850 m
Bulgaria
lowest point: Black Sea 0 m
highest point: Musala 2,925 m