London,
England
í
s
capital,
set
on
the
River
Thames,
is
a
21s
t
-century
city
with
history
stretching
back
to
Roman
times.
At
its
centre
stand
the
imposing
Houses
of
P
arliament,
the
iconic
ë
Big
Ben
í
clock
tower
and
W
estminster
Abbe
y
,
site
of
British
monarch
coronations.
Across
the
Thames,
the
London
Eye
observation
wheel
provides
panoramic
views
of
the
South
Bank
cultural
complex,
and
the
entire
cit
y
.