There's a labyrinth of medieval chambers hidden deep below a 15th-century pub.

A labyrinthine underworld of tunnels and caverns hides beneath the city.

This unchanged Victorian park is rumored to have been the inspiration behind Peter Pan's Neverland.

The first archaeological site discovered by aerial photography.

Famously misunderstood wonder of the ancient world

These markers note British stars of both stage and screen.

The accidental discovery of this gilt bronze head led archaeologists to find the Roman Baths in the city of Bath

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

A remarkable medieval structure born from a 14th-century disaster.

This 15th-century fortification was built to defend bunnies.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

A tiny town’s tiny museum with some gigantic residents.

A marble cornerstone marks the location of what could have been a presidential palace.

Colorado’s most beloved glacier is an imposter.

More than 100 steam and diesel locomotives bring Colorado’s rail heritage to life.

Drift through decades of high desert music history at this funky hometown museum.

This stunning, technicolor array of geysers has occupied Ferril lake since 1908.

After being lost for nearly a century, this historic bell finally returned home after its mysterious theft.

Built in 1981 in collaboration with Andy Warhol, this giant piece of pop art stands on the campus of Colorado State University.

At this multicultural hub, refugee chefs serve the foods they miss most from home.

One of three remaining theatres in the United States created in the Art Deco Mayan Revival style.

Once named the “world’s oldest gas station” due to its unusual construction material.

One of the oldest continuously operating amusement parks in the U.S. is an open-air museum of Art Deco and neon lights.

This depiction of the earth mother welcomes new life into Aurora Highlands.