WBorder barrier
WBangladesh–India border
WBangladesh–Myanmar border
WBerlin Wall
WCeuta border fence
WEgypt–Gaza barrier
WEgypt–Israel barrier
WFrontier Closed Area
WGreat Wall of China
WHadrian's Wall
WIran–Pakistan border
WIraq–Saudi Arabia border
WKazakhstan–Uzbekistan relations
WKelasuri Wall
WKorean Demilitarized Zone
WKruger National Park
WKyrgyzstan–Uzbekistan barrier
WLínea P
WMelilla border fence
WMexico–United States barrier
WOman–United Arab Emirates border
WSaudi–Yemen barrier
WTegart's Wall
WTrump wall
WSyria–Turkey barrier
WWire of Death