A UFO-shaped event building originally intended to be a science museum showcasing the future.

Europe's official "zero-level," the equator of elevation.

Rich with fauna and flora, nature-lovers can walk across the sea at this UNESCO World Heritage spot.

Peek through a transparent pyramid and drink in the mountain made of books.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

The steepest classic funicular in the world glides along a dizzying incline.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

This amazingly well-preserved villa just outside Pompeii boasts rare examples of ancient Roman paintings.

The Sighignola summit on the Swiss border offers views so breathtaking it's been named one of the most beautiful places in Italy.

This 1st-century CE Roman bath sits under a carpark.

The glowing blue Nymphaeum of Emperor Tiberius.

This clifftop arch is a natural stunner.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

2300-year-old Roman road connecting the empire.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

This chilly Canadian hotel has a four-month lifespan due to the unusual material it's made of.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

The remains of a once-famous hotel that also acted as an artist colony.

These prehistoric replicas were based on actual skeletal remains.

This giant Canadian coin is a monument to the artist who created its iconic emblem.

Only six people can sit inside this delightfully quaint sanctuary.

This impressive working clock made of 16,000 plants changes its flowers twice a year.

Take a ride on antique streetcars from across Canada.