London Butterfly House
http://www.butterflies.org.uk/ Visitors can walk through the Butterfly House and view British and
tropical butterflies in their natural environments. Visitors to the
website can look at photos and learn about the life cycle of the
butterfly.
The Thames Barrier
http://www.highway57.co.uk/tbvc/ This is an unofficial website, full of facts and photos about the
Thames Barrier, opened in 1984 by the Queen and designed to prevent London
from flooding until at least 2030.