One of the world’s most colorful cemeteries, where each pigment is symbolic.

One of the best-preserved medieval streets in Europe.

Central America's deepest lake is actually a volcanic caldera, surrounded by three volcanoes.

The restaurant keeps a hidden séance room on the second floor and reserves a table for the spirit of the former owner each night.

This cathedral dedicated to Louis IX, sainted King of France, holds many secrets.

Legend says it was constructed with the destroyed pillar of an ancient Greek Temple.

This spectacular track has run continuously since 1882.

See massive fossils that are over 200 million years old in northeastern Arizona.

A unique structure located on the grounds of one of five grand palaces that were built by the Joseon dynasty.

Most-visited and most-photographed slot canyon in the American Southwest.

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

Originally conceived as part of a proposed Arizona State Capitol building in the 1950s, this structure built in 2004 stands as a monument to the architect's legacy.

Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

In a city filled with Frank Gehry buildings, one stands out as one of the architect's weirder works.

The location where the iconic movie character declared it was time to go home.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

60 feet of towering steel balances gracefully.

The first life claimed by this record-breaking peak wasn't lost to exposure or a fall, but rather lightning.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

This otherwise unremarkable ski town building marks the site of Butch Cassidy's first robbery.