A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

One of the most photographed buildings in a city known for its Modernista architecture is an abandoned squat.

Barcelona's only remaining tram system takes riders to the Tibidabo funicular.

A wonderful collection of fossilized dinosaurs and other creatures that roamed the landscape millions of years ago.

This colorful statue welcomes visitors to a Barcelona park.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

An eerie collection of the surviving structures from a past celebration of the future.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

Possibly the oldest church in Barcelona, this basilica has its pagan and Christian mythologies all mixed up.

The final resting place of the great navigator, or maybe his brother.

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

This whimsical winery by Antoni Gaudí looks ripped from the pages of a fairytale.

A stately palace has been converted into the world's largest cannabis museum.

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.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

The hidden offices underneath Memorial Bridge have been locked up since 1976.

Saint Joseph was said to heal the deaf and blind, but it was a much smaller miracle that got him canonized.