A giant baby floats in the middle of Singapore’s nature park.

These azure waters were thought to lead to the Mayan Underworld.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

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

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.

An open-air "garden" of mural art that changes weekly.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

Earth's rocky history has rarely glittered so brightly as it does in this Spanish museum.

This funky former tobacco factory is one of the most striking examples of Madrid's cultural diversity.

The only urban monument in the world designed by the great surrealist painter Salvador Dalí.

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

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.