The oldest warship in Europe is still afloat.

The most remote tree in the world is more than 170 miles from its nearest neighbor.

This colossal ancient jaguar sculpture was used as a vessel for the hearts torn from sacrificial victims.

The runoff from these fiery cliffs sends red water flowing into the sea.

The only urban monument in the world designed by the great surrealist painter Salvador Dalí.

Dine amidst exotic plants at this former royal greenhouse.

The singular ruins of a mysterious lost city.

Mysterious Incan ruins on a tiny island in Lake Titicaca.

A paradisical gorge with rapids, waterfalls, and wildlife whose raw beauty is the stuff of CGI movies.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

Dating back to the second century, vestiges of prehispanic mural paintings are found in this underground palace.

This mysterious, medieval cathedral remains unbuilt but fiercely protected.

These sacred Mesoamerican ruins feature peculiar petroglyphs hidden in the stones.

Legend has it that Napoleon Bonaparte fell in love with this Gothic church.

This strange sculpture of a menacing skull surrounded by sun rays was discovered at the foot of the Pyramid of the Sun.

Hidden in plain sight, Sweden's official ordnance datum is now abandoned.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

An otherworldly alpine pasture with its own unique microculture that recalls Middle Earth.

This ruined 15th-century hermitage is steeped in myth and mystery.

A little slice of Japan and its aesthetics in London's Holland Park.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

Cornish legend says these ancient circles were people turned to stone for playing hurling on a Sunday.

A lush oasis full of vibrant plants and striking geometric displays.

The fire inside this temple has burned for more than 1,500 years.