Question: where is the tower bridge and what is special about it

title: Tower Bridge
text: Tower Bridge Carries A100 Tower Bridge Road Crosses River Thames Locale London boroughs : -- north side : Tower Hamlets -- south side : Southwark Maintained by Bridge House Estates Heritage status Grade I listed structure Preceded by London Bridge Followed by Queen Elizabeth II Bridge Characteristics Design Bascule bridge / Suspension Bridge Total length 801 ft ( 244 m ) Height 213 ft ( 65 m ) Longest span 270 ft ( 82.3 m ) Clearance below 28 ft ( 8.6 m ) ( closed ) 139 ft ( 42.5 m ) ( open ) ( mean high water spring tide ) History Opened 30 June 1894 ; 123 years ago ( 1894 - 06 - 30 )