Hidden within Sydney’s lush Royal Botanic Garden is a walled cactus rockery and the site of Australia's first zoo.

In the shadow of the Sydney Opera House, Indigenous ingredients shine.

This trio of Australian rock spires may have inspired aboriginal legend or just modern tourism.

A sharply wedged sundial marks the point at which each day in the United States begins.

A rare underwater observatory in the Caribbean that provides breathtaking views of vibrantly colored aquatic life.

Commercial airplanes land mere feet over the heads of sunbathing beachgoers on this tiny island.

A fort of historic failures where the island's colonial powers first collided.

Where Saint-Martin ends and Sint Maarten begins (or vice versa).

A roundabout in the West Indies that pays tribute to a bus driver who brokered no-nonsense on the school route.

Tours drive right past this military burial ground to get the the Shirley Heights lookout.

An imposing statue of the first prime minister of Antigua and Barbuda stands in the middle of a traffic intersection.

The larger of two volcanic peaks rising out of the crystalline waters of the Caribbean.

Come for the springs; stay for the mud bath.

This popular tourist cave was ignored for almost 200 years before being mined into an attraction.

Legend tells how a Spanish soldier disappeared from this isolated sentry box without a trace.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

This colorful gate stands as an entrance to the walled city of Old San Juan.

A park where people have been going to feed friendly pigeons since the 18th century

This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.

This tiny home was originally a narrow alleyway.

This imposing memorial contains the remains of Che Guevara — and 29 other guerrillas who died with him in Bolivia.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

Once a favorite playground for the world's most illustrious guests, Hotel Nacional's secret weapons and bunkers reveal a more menacing side to its golden history.

This statue in Plaza San Francisco commemorates a beloved figure from 1950s Havana.