This semi-secret storybook hedge maze is also the oldest garden in the city.

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.

The little church's beautifully frescoed ceiling has earned it the nickname “the Sistine Chapel of Madrid.”

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

An ancient Egyptian temple in the middle of Madrid, Spain.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

The world's largest wooden structure.

The world's oldest bookshop still in operation.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

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

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Cabaret where the show girls are all androids, and the patrons couldn't be more pleased.

This temple is steeped in local folklore involving a teakettle and a raccoon dog.

Hot springs monkey spa in the middle of Hell's Valley.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

A 10 million-ton rock once worshiped by the Tahamies Indians, accessed by an astounding staircase.

Ripped apart by a bomb in 1993, the shell of Pablo Escobar's infamous vacation house still stands.

The Church of the Annunciation was carved into the face of a cliff, just like the rest of the town of Haute-Isle.

The world's largest squirrel statue clutches a pecan bigger than your head.

This prison on the Maltese island of Gozo is almost 500 years old, and they have the graffiti to prove it.

This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.

When this massive wooden temple ran out of rope, they made one out of devotees' hair.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.