Meant to be a lavish presidential home, the palace became a symbol of the fall of South Vietnam.

Ho Chi Minh's perfectly preserved body has been on display here since 1975.

Thousands of effigies of Buddha watch from caves set high above a legendary river, plus whiskey.

This tiered waterfall is so pretty it may cause visitors to cry tears of their own.

Central America's deepest lake is actually a volcanic caldera, surrounded by three volcanoes.

One of the largest ochre quarries in the world, hidden in a limestone landscape.

From carts to cars, this leftover Roman bridge in France has managed to survive for centuries.

The celebrated eyesore created by starry-eyed sweethearts.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This garden houses the remains of the ancient Greek port of Marseille.

This modern museum of Mediterranean culture is surrounded by a surreal concrete honeycomb.

Legend has it the lovelorn tears of a princess and a shepherd boy formed the blue and green twin lakes in the Azores archipelago.

One of few vertical lava tubes in the world accessible by foot.

Europe's oldest still-operational tea farm also boasts a spectacular view.

A perfectly circular lake is formed by the crater of an ancient underwater volcano.

This abandoned five-star hotel is now a five-star urban exploration destination.

This fairy-tale, neo-Gothic church in the Azores is a world of magical realism.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.