The Darvaza Gas Crater in Turkmenistan, nicknamed the Door to Hell, has been burning continuously since 1971.

The Pacific Ring of Fire contains many of the world's active volcanoes.

Fact #157 · Geography

The CN Tower in Toronto was once the tallest free-standing structure.

Fact #1531 · Geography

The Sahara desert was a green savanna as recently as 5,000 years ago.

Fact #3588 · Geography

The Nile River delta is fertile farmland.

Fact #290 · Geography

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

Fact #3761 · Geography

Canada has more lakes than every other country combined.

Fact #3390 · Geography

There are more pyramids in Sudan than in Egypt — the Nubian pyramids number over 200.

Fact #4259 · Geography

The first forests appeared during the Devonian period.

Fact #710 · Geography