This unique prehistoric funerary monument is notable for its distinctive boat-shaped design and exceptional preservation, offering a fascinating glimpse into the island's ancient burial practices.

A tunnel with windows, so you don't miss out on the impressive views.

England's "pier at the end of the universe" unites astronomy and contemporary architecture.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

The unique collection includes bronze cast handprints of some of America's most famous astronauts.

A building so large that it has its own weather.

A much more welcome kind of snowbird vacationer, manatees camp out in these springs every winter.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

This beautifully situated lakeside Roman settlement was likely built during the reign of the Emperor Hadrian.

Also known as “Robin Hood’s tree,” it became a famed location along Hadrian's Wall before it was cut down.

This temple was constructed entirely by Roman soldiers.

This enchanting Victorian estate was home to the world's first hydroelectric power generator.

This secret coastal village is studded with pastel-colored houses all piled on top of one another.

While most shipwrecks are submerged, this ship in Cyprus ran ashore.

Legend holds that the Ancient Greek goddess of love once bathed in the waters of this grotto.

The ancient mosaics here are considered among the finest in the world, and serve as a stunning record of Greco-Roman daily life.

Poland's oldest salt mine has nearly everything one needs to live underground forever.

The former Nazi Germany concentration camp stands as a museum to remember this dark chapter in European history.

Inside this Krakow church, an explosion of psychedelic color.

Known as the Sistine Chapel of Egypt, this tomb houses some of the most well-preserved paintings in Egypt.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

A contemporary art installation housed within a Gothic cathedral.

This historic electric train has operated with regularity since the early 1900s.

Swarms of dainty flying insects swarm into the Petaloudes Valley to get busy.