A heavenly experience, right here on Terra Firma.

Two small chapels housed inside an ancient tree.

A slice of central Asia in the middle of Berlin.

The remains of what was, not so long ago, the world's largest city.

An ancient Egyptian temple in the middle of Madrid, Spain.

Largest lake in Great Britain measured by surface area.

A walk through the historic city center, under the streets of Seattle.

Centuries-old bridges grown from tangled roots.

The enigmatic and seldom visited ruins of a Mayan city-state.

Remember that scene in the Matrix, when Neo is in the big white room with all the weapons flying by? Well, this is what it would look like if he had wanted trees instead of guns.

Walk through living pictures and music in the Cathedral of Images.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Elevated freight railway turned wildly successful urban park.

A marvel of Byzantine engineering under the streets of Istanbul.

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

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

Vast fan-shaped British cemetery honouring American servicemen lost in World War II.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

A petite white lighthouse perched on the ancient core of Stromboli Volcano.

Abandoned city hidden from the world by tropical forest and isolation on the coast of Kenya.

A restaurant and observation deck built in a unique broadcasting antenna.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Hiding the longest subterranean river known in the world.

Malaysian fireflies create a dazzling display as thousands light up in unison.