A colossal statue with a controversial past, forgotten for more than 30 years.

Neo-cave art on the macro scale.

His music once banned in Communist Cuba, John Lennon is now immortalized in bronze by Castro, who considers Lennon a "fellow dreamer."

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

The largest retailer of seashells in the world.

Former utopian colony based on the belief that the universe exists in a hollow sphere.

One of the world’s largest and deepest freshwater springs, where mastodons once roamed.

The world's largest occupied bat houses hold hundreds of thousands of flying mammals.

Over 120,000 curious objects that have shaped our modern world.

A mysterious castle built as a monument to lost love.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

America's only city hall with minarets took architectural cues from Ali Baba and the Forty Thieves.

Where monkeys run wild and the humans are caged.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Model Trains and Much More in Hamburg.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

A fascinating insight into daily life in the Eastern Bloc.

One of downtown Berlin's last reminders of its Communist past.

This Austrian museum celebrates the work of famous forgers and their inimitable imitations.

A big museum full of little worlds.

The world's largest collection of fine-scale miniatures and one the nation's largest collections of antique toys.