A 4,500-year-old forest is slowly being revealed from beneath the sands of a Welsh beach.

A cemetery and the town it served sinks beneath the sea during the volcanic birth of Mt. Vulcan.

These stark white cliffs were spat up by the sea and are slowly being retaken by it.

As can be expected from a centuries old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

This 14th century castle withstood years of battle but is now sliding off the hills into the Danube.

Stumps of an Ice Age forest, visible only at low tide.

This Tuscan lake hides a 13th century town that is still visible when the water recedes.

Submerged trees jut ghost-like out of an idyllic turquoise mountain lake.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

At more than 5,000 years old, these structures are among the oldest free-standing stone buildings in the world.

A submerged archeological park still holds the wonders of a Roman Sodom.

A tree that defies gravity grows in an ancient ruin.

This Quebec estate is home to the elaborate gardens of a self-taught horticulturist.

This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

The top of society once luxuriated in this world-class hotel, which continues to impress, even in ruin.

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

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”