Discover amazing things to do everywhere you go

The world’s famous Colosseum was built in 80 AD for the Roman emperors to stage fight to-the-death gladiator battles and hunt and kill wild animals, whilst members of the general public watched the violent spectaculars. Entry was free, although you were seated according to your social rank and wealth. Gladiatorial games were banned in 438 AD; the wild beast hunting continued until 523.

The Colosseum is amazing for its complex and advanced architecture and building technique. Despite being used as a quarry for building materials at various points in history, it is still largely intact. You can see the tiered seating, corridors and the underground rooms where the animals and gladiators awaited their fate. Today the Colosseum has set the model for all modern-day stadiums, the only difference being today's teams survive their games.

Built by Gustave Eiffel for the 1889 World Fair, held to commemorate the centennial of the Revolution, the Eiffel Tower (Tour Eiffel) made headlines at the time as the world's tallest structure at 1,050 feet (320 meters). Initially opposed by Paris' artistic and literary elite, the tower was almost torn down in 1909, but its salvation came when it proved an ideal platform for the antennas needed for the new science of radiotelegraphy.

Today, the highlight of a visit is the supreme view over Paris. When you're done peering upward through the girders from the ground, head up to the three levels open to the public, one of which features the famed 58 Tour Eiffel Restaurant. Just southeast of the Eiffel Tower is a grassy expanse that served as the site of the world's first balloon flights. Today, the area is frequented by skateboarding teens and activists stating their views on the current state of France.

For almost 150 years, Alcatraz has given the innocent chills and the guilty cold sweats. Over the years it's been the nation's first military prison, then a forbidding maximum-security penitentiary, now a National Park. No wonder that first step you take off the ferry and onto 'The Rock' seems to cue ominous music: dunh-dunh-dunnnnh!

The trip to Alcatraz is popular and space is extremely limited. Purchase Alcatraz tickets as far in advance as possible, up to 90 days. The roster of Alcatraz inmates read like an America's Most Wanted list. A-list criminals doing time on Alcatraz included Chicago crime boss Al "Scarface" Capone, dapper kidnapper George "Machine Gun" Kelly, and hot-headed Harlem mafioso and sometime poet "Bumpy" Johnson. Though Alcatraz was considered escape-proof, in 1962 the Anglin brothers and Frank Morris floated away on a makeshift raft and were never seen again. A visit to Alcatraz is more than just seeing the inside of an old prison.

The popes were among the very first royalty to open their vast art collections to public viewing. Pope Julius II (1443 - 1513) began collecting sculpture during the Renaissance and, ever since, most popes have taken an active interest in art and in commissioning the best artists of their time.

Today you can view the Vatican's incredible collection while touring the so-called 'Vatican Museums', a huge complex of galleries and museums showcasing painting, sculpture, frescoes, tapestries and classical antiquities including Roman, Greek and Egyptian. There are, of course, also collections of religious art, papal portraits and, less obviously, carriages and automobiles.

Any visit to the Vatican should also include the famous Sistine Chapel and Raphael's Rooms. Leave plenty of time for winding your way through the museums and the narrow connecting corridors and staircases.

Antelope Canyon is a breathtaking natural attraction in Arizona and a large source of tourism revenue for the Navajo Nation. The stunning slot canyon is the most visited in the American Southwest and was formed by erosion of Navajo sandstone.

The canyon is composed of two parts, the upper and lower canyon. The upper canyon is referred to as “the place where water runs through the rocks” and does not require you to climb. The lower canyon is called “spiral rock arches” and has stairs so you can access the base.

The Louvre may be the world's greatest art museum. Don't be daunted by its size and overwhelming richness; if you have even the merest interest in the fruits of human civilization from antiquity to the 19th century, then visit you must.

The former fortress began its career as a public museum in 1793 with 2,500 paintings; now some 30,000 are on display. The most famous works from antiquity include the Seated Scribe, the Jewels of Rameses II, and the armless duo - the Winged Victory of Samothrace and the Venus de Milo. From the Renaissance, don't miss Michelangelo's Slaves, Leonardo da Vinci's Mona Lisa and works by Raphael, Botticelli, and Titian. French masterpieces of the 19th century include Ingres' La Grande Odalisque, Géricault's The Raft of the Medusa, and the work of David and Delacroix. The Grand Louvre project has rejuvenated the museum with many new and renovated galleries now open to the public. To avoid queues at the pyramid, buy your ticket in advance.

It is one of the 20th century's most compelling stories: a young Jewish girl forced into hiding with her family and their friends to escape deportation by the Nazis. The house Otto Frank used as a hideaway for his family kept them safe until close to the end of World War II.

The focus of the Anne Frank House museum is the achterhuis, also known as the secret annex. It was in this dark, airless space that the Franks observed complete silence during the day, before being mysteriously betrayed and sent to their deaths.

The Anne Frank House is pretty much intact, so as you walk through the building, it's easy to imagine Anne’s experience growing up here as she wrote her famous diary describing how restrictions were gradually imposed on Dutch Jews.

La Sagrada Familia is no doubt the most iconic structure in Barcelona. The church, located in L'Eixample, has been a fixture in Barcelona since construction commenced in 1882 and as building continues on today the structure's fame only grows.

Though still a work in progress, the church already is an amazingly intricate structure. Antoni Gaudí spent 43 years on this project and, since his death in 1926, the duty to finish it has been passed on to several architects. Though the responsibility continues to change hands over the years, the architects have all respected Gaudí's vision and have made additions with his design in mind. Inside the church has an impressive stained glass windows line the main room and a lift takes visitors up one of the towers to enjoy the view. Smaller rooms hold exhibits detailing the history and future of the structure. La Sagrada Familia is projected to be completed in 2026, the 100th anniversary of Gaudí.

The Auschwitz concentration camp was established in April 1940 in the prewar Polish army barracks on the outskirts of Oświęcim. Originally intended for Polish political prisoners, the camp was 'repurposed ' as a dedicated center for the genocide of the Jews of Europe. For this purpose, the much larger camp at Birkenau (Brzezinka), also referred to as Auschwitz II, was built 2km west of the original site in 1941 and 1942, and another in Monowitz, several kilometers to the west. It is now estimated that this death factory eliminated some 1.6 million people of 27 nationalities, including 1.1 million Jews, 150,000 Poles and 23,000 Roma.

Auschwitz was only partially destroyed by the fleeing Nazis, and many of the original brick buildings stand to this day as a bleak testament to the camp's history. Some 13 of the 30 surviving prison blocks now house museum exhibitions, either general or dedicated to victims from particular countries or races that lost citizens at Auschwitz.