This bronze statue stands throughout the year and illustrates an urgent message about the environment.

Some of England's last cave dwellers lived and worked within this huge cave.

A magnificent winding road through a steep valley, with deep natural caverns at the bottom

Semi-precious Blue John stones have been mined in this cavern system for centuries.

Opened in 1932, this theater in Stockport's Mersey Square is a bonafide Art-Deco gem.

This dangerous-looking suspension bridge may have been too unstable to remain open.

Local legend holds that if you can make it up this steep cobblestone stairway without taking a breath, you'll have wish come true.

One of the largest mechanical models of the solar system in the world.

The former Nazi Germany concentration camp stands as a museum to remember this dark chapter in European history.

An underground city of salt.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

Unable to build support structures on glaciers, the engineers for this tramway were forced to design a unique system.

One of the few surviving street funiculars in the world.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

Breathtaking and huge 430 year old maps of Italy.

Northern Ireland's Brobdingnagian stepping stones.

The atmospheric road was never meant to be so creepy.

These jagged limestone blades cut out through the canopy of the jungles of Borneo.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

An important pilgrimage site for pagans and early Christians, named for a Celtic goddess-turned-saint.

The largest known Ancient Egyptian obelisk.

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

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

An endless sea of white conical domes.