check on Blokkers https://maproulette.org/browse/challenges/41299
check on Blokkers https://maproulette.org/browse/challenges/41299
check on Blokkers https://maproulette.org/browse/challenges/41299
check on Blokkers https://maproulette.org/browse/challenges/41299
check on Blokkers https://maproulette.org/browse/challenges/41299
check on Blokkers https://maproulette.org/browse/challenges/41299
check on Blokkers https://maproulette.org/browse/challenges/41299
check on Blokkers https://maproulette.org/browse/challenges/41299
check on Blokkers https://maproulette.org/browse/challenges/41299
check on Blokkers https://maproulette.org/browse/challenges/41299
check on Blokkers https://maproulette.org/browse/challenges/41299
check on Blokkers https://maproulette.org/browse/challenges/41299
Convert parking nodes to areas - World #maproulette https://maproulette.org/browse/challenges/11612
Convert parking nodes to areas - World #maproulette https://maproulette.org/browse/challenges/11612
Convert helipad nodes to areas - World #maproulette https://maproulette.org/browse/challenges/40681
Minor corrections to a previous edit of mine