Nestled deep in the jungles of Phong Nha Ke-Bang National Park, the magazine states that Son Doong Cave is the world’s largest of its kind, featuring the planet’s largest chamber measuring 600-feet high, 300-feet wide, and over 2.5-miles long.

The scale of the site’s interior is so large that it could fit an entire block from New York City inside, including skyscrapers, or have a Boeing 747 comfortably fly through without the wings being in any danger.

Each year, only a handful of tourists are permitted to enter, with groups going into the cave as part of a five day expedition that involves two nights of camping inside of Son Doong Cave.

Guests visiting the site are met with a gargantuan lost world hidden beneath the ground, a truly unique landscape that is unlike anywhere else on Earth.

Most recently shots of the famous cave appeared in the Christmas Day promotional teaser for DJ Alan Walker’s latest MV "Alone Pt. II", with images of Son Doong Cave appearing alongside other beautiful snaps of central Quang Binh province. VOV

Private company granted exclusive rights to Son Doong tours

Oxalis Adventure Tours has been granted exclusive rights to accompany adventure seekers to Son Doong, the world’s largest cave, located in central Vietnam, for up to 10 years.