An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

A 30-acre garden inspired by the principles of modern physics.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

These fantastically named natural pools look like something out of a Scottish myth.

This dazzling Buddhist temple was constructed from over one million ceramic tiles salvaged from a British shipwreck.

Thailand's distressed elephants find peace at this Chiang Mai sanctuary.

This 11th-century Greek monastery has renowned mosaics and relics of a brutal past.

The oldest standing Byzantine church in Athens is tucked within a monastery in the middle of an upscale shopping district.

This medieval "painted village" is famous for its geometric facades.

Where commuters walk through remnants of an ancient Greek necropolis.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.

The ruins of an abandoned medieval city where the last Byzantine emperor was crowned.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

This legendary city has been a tourist attraction for centuries.

The hallucinogenic center of the ancient world.

Monasteries on rock pillars, once accessible only by frayed ropes.

A museum dedicated to the alleged Roswell Incident.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

This quirky outpost and gallery inside a former church is an unexpected trove of handcrafted art.

A little stop along the Texas highway where Rock Hudson, Elizabeth Taylor, and James Dean stayed while shooting the 1955 film "Giant."

The highest point in Texas is capped by a big silver pyramid.