Whales sing complex, evolving songs — humpback whale songs change year to year and spread between populations.

The world's deepest lake is Lake Baikal in Russia, containing 20% of the world's unfrozen fresh water.

Fact #3401 · Geography

The border between Belgium and the Netherlands runs through a bar in the town of Baarle-Hertog.

Fact #3761 · Geography

The Suez Canal significantly reduced travel time between Europe and Asia.

Fact #1514 · Geography

The Andes mountain range runs along the western edge of South America.

Fact #91 · Geography

There are deep ocean trenches deeper than Mount Everest is tall.

Fact #2273 · Geography

The Pentagon Papers revealed previously undisclosed details about U.S. involvement in Vietnam.

Fact #1043 · Geography

The Aswan High Dam controls flooding of the Nile River.

Fact #1524 · Geography

The Amazon rainforest produces about 20% of the world's oxygen.

Fact #3746 · Geography