An ancient underground cultic temple where sunlight penetrates on the summer solstice.

As the Dead Sea continues to deplete, massive sinkholes open along its banks.

Descend 2,030 years into the past in an ancient tunnel built to support Jerusalem's most famous wall.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

The home of the Dead Sea Scrolls is an abstract modernist dream.

These numerous Israeli caves were dug out over hundreds years for reasons ranging from hideouts to burial sites.

The medieval center of the Islamic world was also once the seat of Saladin's sultanate.

Standing atop 2nd-century Roman ruins, this church is one of the oldest and most iconic in Old Cairo.

Slum Settlement Filled With Mountains of Garbage.

Known as the Sistine Chapel of Egypt, this tomb houses some of the most well-preserved paintings in Egypt.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

Ozymandias’ time-keeping temple.

An unusual round church in London with a Templar past.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

The attic of a four-century-old canal house hides a clandestine church.

The longest and tallest aqueduct in Britain can actually be sailed across.

The castle still holds traces of the abandoned Roman fort it was built atop.

Recently restored menagerie of Victorian-era beasts.

This Welsh village gave itself a ridiculous name in a publicity stunt a century ahead of its time.

The Stonehenge of Wales is one of the grandest neolithic dolmens still in existence.

The oldest continual pilgrimage site in Britain was supposedly created by a gruesome beheading.

At the United Kingdom's only residential library you can sleep among the books.

A hermit's tiny cell built into the cliffside that saved him in South Pembrokeshire.

Time has stopped at the house where Gandhi died.