A sinuous path among steep cliffs creates a stunning sight in southwestern Serbia.

The best Tiki bar in Las Vegas.

This institution collects the history of burlesque dancing with a titillating collection of ephemera and pasties.

The former home of a trailblazing surrealist is still filled with haunting dolls and grim paintings.

A lush indoor jungle fills this bustling Madrid transportation hub.

An underground city of salt.

Malaysian fireflies create a dazzling display as thousands light up in unison.

These jagged limestone blades cut out through the canopy of the jungles of Borneo.

The world's largest ecosystem of its kind is home to South America's only native species of bear.

The centuries-old trees are draped with Spanish moss to make them look like wizened elders.

Only gap in the 30,000-mile span of roads called the Pan-American Highway.

A 'living museum' in Leiden, the oldest of its kind in the Netherlands.

Inspired by "The Starry Night" this Dutch bike path turns into a glowing work of art each night.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

The world's widest single drop waterfall, and the two men who legend says went over its edge in a boat.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

A 16th-century Andalusian palace.

The world's largest wooden structure.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

The earliest known map to show America, discovered by accident at a Paris bookshop.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

Cuba's historical trains remind natives of their country's sugary sweet past.

This communist country can still appreciate its fragrant past.