Baroque celebration of the end of the Great Plague of Vienna.

This demon atop the Notre-Dame de Paris looks utterly bored.

This pseudo-steampunk weapons facility is the world's largest wood and glue structure, and packs quite a wallop.

The oldest standing structure in downtown San Diego.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

A unique collection of artistic rides

This fireplace-turned-monument pays tribute to the assassinated U.S. president.

This isolated outpost was once the only place to cross the Colorado River for hundreds of miles.

Opinions differ as to whether this Arizona tree was actually used as a Wild West jail, but that hasn't stopped the town from capitalizing on it.

These mid-century motels once housed the workers who built the Glen Canyon Dam.

The state's only comprehensive museum dedicated to the mineral that defined its history and economy.

Rusting dinosaurs frolic at the entrance to this roadside "snake sanctuary."

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

Hiding in plane sight.

A paradise hotel turned from opulent to overgrown.

Impressive sink holes fill this untouched old-growth forest in the Bahamas.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

The massive cave church of Cairo's Zabbaleen community is one of the largest Christian churches in the Middle East.

An ancient city exhumed from the depths of the ocean.

Hidden in one of the skyscrapers on Bunker Hill, this museum features an 1895 stagecoach and peers into California’s gold-lined history.

A 50-foot tile mural mosaic for the 100-year anniversary of the Statue of Liberty.

The blinking light atop the iconic landmark has been sending secret messages for decades.

Because there's no place like home.

The final resting place of a space program monolith.