Nature’s skyscraper launches out of the terrain with attitude.

The world's highest and most dangerous infinity pool lies at the precipice of Victoria Falls.

Fabulous formations, weird and wonderful wildlife.

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

Stone Age solar temple is aligned with the sun on each equinox and solstice.

Underground monastery and fortress.

Remnants of the most densely packed city in world history, that thrived on anarchy for 30 years.

Small church on top of a huge rock column.

The world's widest single drop waterfall, and the two men who legend says went over its edge in a boat.

This "floating island" plateau sits 7,671 feet above the forest floor.

This odd Chilean waterfall-cano hotel must be entered via a rope bridge.

A huge musical instrument played by the ocean.

This historical theme park celebrates all things noodle.

Ancient catacombs form the foundation for this Rococo orgy of a church.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

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

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

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

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

Crumbling remnant of Rio's colonial past tucked behind Corcovado mountain in the neighborhood of Cosme Velho.

This stunning Brazilian library contains the largest collection of Portuguese texts outside of Portugal itself.

The oldest hotel in the world has been operated by the same family for over 1,300 years, even catering to samurai.