great circle

<use xlink:href="/assets-global/icons/svg-sprite.svg?v=2020-12-05-011835-5e27aba-018015#ico_plus"> <use xlink:href="/assets-global/icons/svg-sprite.svg?v=2020-12-05-011835-5e27aba-018015#ico_minus">

<use xlink:href="/assets-global/icons/svg-sprite.svg?v=2020-12-05-011835-5e27aba-018015#ico_plus"> <use xlink:href="/assets-global/icons/svg-sprite.svg?v=2020-12-05-011835-5e27aba-018015#ico_minus">

<use xlink:href="/assets-global/icons/svg-sprite.svg?v=2020-12-05-011835-5e27aba-018015#ico_plus"> <use xlink:href="/assets-global/icons/svg-sprite.svg?v=2020-12-05-011835-5e27aba-018015#ico_minus">

<use xlink:href="/assets-global/icons/svg-sprite.svg?v=2020-12-05-011835-5e27aba-018015#ico_plus"> <use xlink:href="/assets-global/icons/svg-sprite.svg?v=2020-12-05-011835-5e27aba-018015#ico_minus">

<use xlink:href="/assets-global/icons/svg-sprite.svg?v=2020-12-05-011835-5e27aba-018015#ico_plus"> <use xlink:href="/assets-global/icons/svg-sprite.svg?v=2020-12-05-011835-5e27aba-018015#ico_minus">