An incredible mosaic-lined monument said to have held the remains of an ancient Roman empress.

This slowly crumbling mansion was home to one of East Africa's richest and most powerful slave traders.

Over the course of its history, this tiny island has held enslaved people in transit and served as a quarantine zone. Today, it's a giant tortoise sanctuary.

This Bogotá museum houses the world's largest collection of pre-Columbian gold relics.

Towering high above the neighborhood of La Candelaria, the church is easily recognizable by its distinctive red-and-white striped facade.

A celebration of Colombia’s premier contemporary artist.

This elegant Colombian fortress was one of the torture headquarters for the Spanish Inquisition.

A cozy bookstore and coffee shop in the heart of Cartagena's Old City.

The colonial city's social history is reflected in its fanciful door knockers.

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

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

The Andean town where every single building is decorated with a brightly colored frieze.

Outdoor escalators and art have helped change what was once a notoriously dangerous part of Medellín.

Three hundred illuminated pillars form an “artificial forest” in Medellín.

Two identical statues by Fernando Botero, one blown to pieces in a terrorist bombing, the other donated as a gift for peace.

Home to 23 voluptuous and instantly lovable sculptures by one of Latin America's most celebrated artists.

The world's tallest palm trees look like the whimsical kind of plant you'd find in a Dr. Seuss story.

This narrow street is packed with street vendors and bars selling chicha.

Unparalleled stargazing, one of Colombia's best observatories, and a swimming pool can all be found in the middle of this ancient tropical forest.

A self-taught astronomer fell in love with the stars and built his own observatory in Colombia.

Op-art architecture designed for happiness.

An exquisite Baroque church in Vienna's old town.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.