What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

Sparkling, calcite-covered skeletons of children who may have been sacrificed to appease an angry god.

These roaring primates were considered a divine creature in the cosmology of the Maya.

A massive underwater sinkhole made famous by Jacques Cousteau.

Monkeys inhabit the lush forest surrounding ancient Mayan ruins once considered sacred.

This portion of a lovely Belize beach is infested with (harmless) sharks and rays.

Deep in the Guatemalan jungle stands an ancient pyramid that once marked the reign of a king.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

The "lovely red Vega" of the legendary record-settling pilot.

Home to items never before seen by the public.

Rat sculptures try to infiltrate the Graybar Building in an architectural tribute to New York City's nautical history.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

A very classy 1920s-era bar right in Grand Central Station.

This Manhattan skyscraper is a reminder of the brief but glorious age of urban air taxis.

There are owls with glowing eyes in Herald Square.

Red frames showcase remnants of one of New York's original subway stations.

The first and only carousel with a lineup entirely of insects.

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

Macabre astrological automaton clock dating to the late 1400s.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.