There are lots of ancient cities that have withstood the test of time. It's quite a marvel and a mystery how these cities were made in the past without the need for advanced technology and modern equipment. Here are a few interesting facts about these ancient cities around the world.

Angkor Wat, Cambodia. This stunning edifice was built in the 12th century and it took about thirty years of construction for this temple. According to Tourism of Cambodia, it was King Suryavarman II who had this stunning architectural masterpiece built in honor of the Hindu god, Vishnu.

Rome, Italy. It's in Rome where you'll find souvenir shops, big crowds and people dressed in gladiator costumes waiting to take pictures with the travelers. However, back in the days of real gladiators, the Colosseum was once a place of bloodshed were the gladiators would fight to the death for the entertainment of the emperor.

Bagan, Myanmar. This paradisiacal place has been off limits to the public for a long time because of Myanmar's military government according to CNN. However, with the political reforms in Myanmar, this plain that is filled with over 2,000 Buddhist temples and rests along the Irrawaddy River can be witnessed by guests and locals now.

Tikal, Guatemala. The stepped pyramids of Tikal have been a symbol of Guatemala's thousand-year cultural history. It also has temples, palaces and sporting courts that encircle the main structure.

Cairo, Egypt. It might be a shock to see how the busy streets of Cairo are so close to the ancient pyramids and the Great Sphinx. However, Cairo itself is also an ancient city that was founded about 1,000 years ago. In fact, it has one of the world's oldest universities.

Machu Picchu, Peru. A popular tourist attraction that attracts over a thousand tourists a day. The grandeur of this city is unspoiled because the Spanish never discovered this part of Peru.

A lot of historical places have already been damaged because of the carelessness of people. These interesting facts about these ancient cities do not only inform but will also help travelers to truly appreciate history.