Various
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There are 2339 manhole covers that belong to category Unknown:       Show on map List mode

Jeju City - Jeju Temple Jeju City - Round lid with a star in the center Thalang district (Phuket) Bangkok - a square lid whose vertices are truncated Suwon - Cover with a maze-like background and the city symbol in the center Suwon - Cover with a maze-like background and the city symbol in the center (2) Havana - a round lid with round bumps Havana - cover with checkered background Havana - C.T.C Havana - Round lid DUFE Havana - HSCo Suwon - a round lid in which circles and small circles Seoul - Cover with a background of a flower from the Songpa District Paris - a cover near the Louvre museum with many decorations Paris - concrete cover with a wide metal frame Charles de Gaulle Airport - Terminal 2a - A cover with the letters C and Z on it Paris - a cover with a background of prominent circles Paris - cover with a background of circles and hexagons Paris - Circles of geometric shapes (2) London - CLARK-DRAIN - background of squares Agios Nikolaos - DZ - XTREME CASTING lid London - Diagonal with checkered background Paris - Cover with a background of pegs (2) Paris - FBM - Modular London - a triangle consisting of several circles with the letters RC on it Jerusalem  - An old cover of the Palestinian Foundry Company Charles de Gaulle Airport - Terminal 2d - a lid with a background of pegs Paris - SYSTÈME COUMET Paris - Cover in the Great Synagogue of Paris (2) Paris - square cover with handle (2) London - Cover in a shape close to a triangle Paris - tiny lid made by Fonderie Bar le Duc Tromsø - Cover with the city emblem on it Tromsø - Cover for Pipelife Tromsø - A cover with a network of circles Tromsø - Cover for Pipelife (2) Paris - a tiny lid with a ring of prominent circles Prague - a small square lid with 9 slots London - Greenwich - EWLOE London - an old round concrete cover with metal strips and an outer ring Warsaw - a small round lid with a handle in the center London - "Chameleon" lid - GATIC Fritzlar - a lid with the city emblem on it Fritzlar - concrete cover with a metal frame Pskov -Round cover with a background of leaves Saint Petersburg - old lid made by I.I. STEGLAU Cochem - a lid with the symbol of the city on it Borisoglebsk - a cap from the time of Soviet Russia St. Petersburg - a cap made in Gulag Tambov Haifa - General manhole cover Kaliningrad - a preserved cover from before WWII that is partly made of wood Marburg - Concrete cover surrounded by metal rings Warsaw - AW SA II Warsaw - cover with a background of circles in the form of a maze (4) Helsinki - lid made by JUPALCO Paris - Brevete - Modular PARIS - A round concrete cover in a square frame (4) Paris - Cover with a background of plus marks Paris - a cover with a background of tiny squares - modular Paris - FBM Paris - lid made by Cofunco (2) Paris - a rectangular lid with a background of rhombuses and an opening hinge Paris - Round lid with a background of circles and lines (2) North York - lid made by USI London - Greenwich - a circular lid with circles of lines radiating from a common center Tel Aviv - Hatikva neighborhood - a rectangular cover with a background of squares Nesher - A cover with a background of rhombuses Paris - a square lid with a background of many small squares Paris - Cover with a background of plus marks (2) London - Air Tight Inspection Cover (8) Paris - cover with a background of circles London - GLOSTER - Modular Borisoglebsk - Round plastic lid Paris - cover with a background of waves Paris - FBM - Modular (2) London - DUDLEY - rectangular with a background composed of squares - A.V. Tel Aviv - cover with the letter H in the center - Yuhui - modular Porto - Porto’s Water Siem Reap - Sanitary - 2021 Paris - diagonals, squares, triangles and points (2) Paris - square cover with handle (3) London - Greenwich - TriGlide - modular  diagonal London - cover with transparent squares St. John’s, NL - A cover with a background of circles of different sizes - MIFAB Warsaw - a cover similar to a brick wall Washington D.C.- A lid with a circle in the center divided into 6 segments Washington D.C. - George Washington University London - small cover with a background of rhombuses London - SMBC Paris - CEMP - Modular Hualien- a lid with the city’s emblem on it London - a rectangular cover with a background of squares (2) Luodong - a lid with the name of the city on it Warsaw - a cover made up of circles of rhombuses made up of triangles Józefów - lid made by Ecol-Unicon Józefów - Anter lid Paris - A lid made by Victor Popp (3) Paris - E.S.B London - Greenwich - Ispection Chamber (2) London - Lid made by Broads London - Greenwich - Lid made in India Tromsø - A cover with a network of circles (2) Tromsø - Cover with a background of arrow heads, modular Tromsø - Cover with the city emblem on it (2) Tromsø - Cover with a background of wavy lines - modular Tromsø - Cover with the city emblem on it (3) Lisbon - Estrada 500 model Borisoglebsk - Round cover with a background of rhombuses Borisoglebsk - Round plastic lid (2) Azay-le-Rideau - a lid with circles of geometric shapes Stansted Airport - Brickley Dudley - Round London - A triangle composed of several circles (3) Paris - Lid made by the Quéruel foundry Sonipat - a lid with a background consisting of circles of squares Warsaw - Stadion Narodowy Warsaw - lid made by OŻW New Delhi - NDMC Warsaw - WGPP Warsaw - cover with a background consisting of circles Paris - a cover with a background of pegs Rome - Urbe 300 model cover Azay-le-Rideau - cap made in Spain and designed for average traffic volume Nantes Airport - Maxum model cover Chinon - Cover with a background of plus marks Bangkok - Ratchadamri - cover with rhombus background London -  Round BROADS London - Cover with a background of prominent hexagons Azay-le-Rideau - a cover with a background resembling a spider’s web Chaumont-sur-Loire - REXEL model cover with a unique background Cheverny - Aksess cover Paris - a modular lid, where in one of its parts there is a small round lid Paris - concrete cover with a wide metal frame (2) Lublin - a lid with a circle in the center, from which come rays that round at the end Lublin - Astra type cover Lublin - cover with a background of circles in the form of a maze Lublin - cover made by Domex Lublin - KACZMAREK cover Lublin - a chameleon cover that does not blend in with its surroundings Lublin - UM

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