Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

This horseshoe-shaped waterfall is the second-largest on the African continent.

This striking otherworldly landscape outside Angola's capital city is the product of millions of years of erosion.

A public display of prehistoric space rocks is named for the Namibian village where they were found.

Hitch a boat ride to dine on stilts while watching wildlife.

Opened in 1976, this monster-sized version of the fast-food franchise is sometimes called the Epic McD.

More than 7,000 gallons of water pour over these cascading red quartzite waterfalls every second.

The lowest point in South Dakota and the source of the Minnesota River.

Dedicated to the history of the 1,000 nuclear missiles that once covered the Great Plains.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

A fitting attraction for the corn capital of the world.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Catalonia Tradition: Beating the hollow Christmas log until it defecates in your fireplace.

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.

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

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

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

A Byzantine-era church hidden in a wooded area below the Acropolis.

The oldest cemetery of modern-day Athens blends the modern and ancient worlds.

This beautifully restored fortification kept the city safe for centuries.

This bazaar is one of the oldest in the Arabian world.

This spectacular mosque houses the second-largest chandelier in the world.

For centuries, Jeddah’s old town was a major trading port and a point of entry for Hajj pilgrims traveling by sea.