Places gwenleif Wants to Go

Part of one of the largest flooded cavities on the planet, and littered with prehistoric animal bones.

Cavernous opening completely encased in Karst limestone.

A 220-foot deep watery drop-off, filled with marine life.

An emerald-green grotto just a short trip from Austin.

A massive underwater sinkhole made famous by Jacques Cousteau.

One of the deepest blue holes in the world.

Island of trash twice the size of Texas floats in the Pacific.

The lesser-known cousin of the Great Pacific trash island.

This Canary island is a quintessential example of nature’s beauty, and its unbridled fury.

The second generation of a mighty volcano rises from the sea.

A sulfuric hellscape in southern Italy.

Virgil's many-mouthed gateway to the underworld.

The forgotten mummies of Dakhla oasis.

Even King Tut was intrigued by the glass of the Great Sand Sea.

A lake in the middle of the tundra of Quebec is said to be the purest freshwater lake on Earth.

The youngest volcano in Central America.

A natural gas leak provides a flickering flame beneath a waterfall.

A quiet memorial to those who died saving others in the heart of the City of London.

The cell which saved the life of Ludger Sylbaris, "the man who lived through Doomsday."

Are these prehistoric metal pipes evidence of alien plumbers? Nope, but they are amazing nonetheless.

Early Medieval stones sit on display at the beautiful Govan Old Church in Glasgow.

Smooth basaltic rocks tell a tale of ancient glacial waterfalls.

A unique waterfall that some believe attracts the fairfolk.

Now nearly dry, this lake is said to be the ancient home of the Lady of the Lake, and was once thought to be bottomless.