Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

This patch of old-growth forest is home to Canada's gnarliest tree.

Defying all odds, this lonely little tree found a home on a log sticking out of a Canadian lake.

Saved by a logger, this Douglas fir is one of the last great old-growth trees in Canada.

By public opinion, this is Canada's knottiest tree.