Unlike most aquariums, at the Interactive Aquarium of Cancún, you'll get a chance to get up close to sea creatures and even interact with some of them. Here, you can touch starfish and sea urchins, swim with dolphins, or watch them put on a show. There are over 140 species on display here and the Aquarium is open 365 days a year.

Havana's favorite green expanse – el Bosque – is frequented by locals seeking natural respite in the shade of century-old trees with veil-like canopy reaching all the way to the ground, which gives the area a primeval forest appearance. The Almendares Park, just to the north along Almendares River, offers family-friendly activities such as mini golf and bike paths.

This is a beautiful and exotic valley located in the crater of an extinct volcano. Temperatures are lower than Panama City, especially during the dry season. Home to a variety of wonders, from the endemic golden frog to unusual square trees, springs, rivers and multiple bird species. This is a favorite vacation and weekend spot where wealthy Panamanians go to kick back, relax and take a break from the hustle and bustle of the city. For years, the Sunday market has been attracting visitors looking for great deals on local handicrafts and products.

The tunnels of Cu Chi hide an entire world including classrooms, kitchens and medical facilities underground. Today you can see the tunnels from above and even try to go down one, so as to better understand the hardships that Vietnamese soldiers had been through during wartime. One is left utterly amazed by the determination and endurance of those who dug through solid soil, gravel and sand to construct this 200-kilometer (125 miles) long underground network.