02 Longest Railway Platform - Kharagpur(India),2733 ft.
03 Longest Railroad Tunnel - Seikan (Japan),33.5 miles
04 Longest Suspension Bridge - Verrazano-Narrows, 13700 ft.long,USA
05 Longest Dam - Hirakund(India),15.8 miles
06 Highest Dam - Rogusky (U.S.S.R.),1066 ft.
07 Largest Dam - Kariba (Rhodesia),149000000 acre ft.in volume
08 Longest Road Highway Tunnel - St.Goldhard(Switzerland),10.01 miles
09 Longest Seaway - St.Lawrence seaway(U.S.A.-Canada),189 miles
10 Largest Passenger Ship - Queen Elizabeth II (83000 tonnes)(U.K.)
11 Largest Merchant Ship - Pierre Guillaumat (france),555031 DWT Tonnage
12 Largest Diamond Mine - At Kimberly,South Africa
13 Largest Diamond - Cullinan(Over 1 1/2 lbs.)
14 Tallest Statue - Motherland, an enormous female figure (U.S.S.R.)
15 Largest Temple - Angkor-Vat (Cambodia), 1400 yds. by 1400 yds.
16 Largest Church - Basilica of St.Peter,Vatican City,611 ft.in length and 18110 sq.yds.in area.
17 Tallest Church - Ulm Cathedral (Ger.),529 ft.high
18 Largest Mosque - Jumma Masjid (Delhi),Over 10000 sq.ft. in area
19 Largest Indoor Theatre - Radio City Music Hall (New York),accommodates 6200 persons.
20 Deepest Boring - An oil well of 25340 ft.(Texas, U.S.A.)
21 Largest Palace - The Palace at Vatican City,area 13.5 acres
22 Largest University Building - Lomonosov University (Moscow), has 32 stories
23 Tallest Tower - Tokyo Tower (Japan) 1000 ft.high
24 Biggest Library - United states Library of congress,Washington D.C. Containing over 41874900 titles.
25 Largest Reflector Telescope - Mt.Semirodriki (U.S.S.R.)
26 Largest Bell -- Tsar Kolokol at Kremlin (Moscow),weight 193 tons
27 Largest Dome - Astrodome in U.S.A.;outside diameter is 216 metres.
28 Largest Pearl - Pearl of Allah,weighs 14 lbs.2 oz.
29 Biggest Railway Station - Grand Central Terminal(New york),with 47 platforms,48 acres in area.
30 Longest Port - New York Harbour (U.S.A.)
31 Longest Corridor - Rameshwaram Temple's Corridor (India),400 ft.
32 Biggest Auditorium - Municipal Auditorium at Atlantic City (U.S.A.),covers an area of 7 acres.
33 Biggest Stadium - Strahov Stadium (Prague),accommodates 240000 spectators.
34 Biggest Hotel - Conrad Hilton (Chicago,U.s.A.), has 25 floors.
35 Largest Aquarium - John J.Shedd Aquarium,Illinois,(U.S.A.)
36 Biggest Museum - American Museum of Natural History has an area of 23 acres.
37 Largest Thoroughfare - Broadway (New York)
38 Highest Airfield - Ladakh Airfields (Kashmir,India),14230 ft.above sea-level.
39 Biggest Zoo - Etosha Reserve(S.W.Africa),38500 sq.miles
40 Largest Park - Yellowstone National Park (USA)
41 Longest Railway Line - Trans-siberian Railway (USSR) connecting Moscow to Vladivostok
42 Largest Office building - Pentagon (Arlington,U.S.A.),over 34 acres of floor area.
43 Tallest Building - Sears Tower(Chicago), 442 m.
44 Highest Suspension Bridge - Over royal Gorge (Colorado,U.S.A.),1053 ft.high
45 Longest Cantilever Bridge - Quebec (Over St.Lawrence River,Canada),3239 ft.in length.
46 Longest Railway Bridge - Lower Zambesi (Mozambique,Africa),12054 ft.
47 Largest Hydro-electric Plant - Krasnoyarsk (USSR),6096 M.W. capacity
48 Highest Straight Gravity Dam - Bhakra Dam(India), 740 ft.
49 Largest Sculptures - Mount Rushmore National Memorial(Black Hills,S.Dakota,U.S.A.)
50 Highest Lighthouse - Bishop Rock (England), 146 ft.high
51 Longest Viaduct - Lake Panchhartrain Causeway (Louisiana,U.S.A.), with a total length of 24 miles
52 Longest Wall - Great Wall of China(1400 miles)
53 Longest recognised swimming course - English Channel (23 miles,calais to Dover)