When does Six Flags open in Denver?

What were some of the countries that had the most people go through Ellis Island? How many people can stand on the glass platform in the Grand Canyon? What countries are near the Mediterranean Sea? Where is Hoover Dam is located? What are some nicknames of the Cape Cod Canal? How many cannonballs are there on the Alfred monument in swanage? What land covers can be found near the tropic of cancer? How long does it takes to get from Detroit to Cedar Point? Why do cuts made in sea water bleed more? Most beautiful city in India? What companies lead the ornamental shrub and tree industry? What climate is london in? What is the biggest sea monster? What river runs next to rhuddlan castle? When was Confederate Monument in Cynthiana created? Is oceanic crust near the mid ocean ridge younger than oceanic crust farther away from the ridge? Where is the Heritage Museum in Leadville Colorado located? Why do they have that name Pisa? What animal besides algae lives in a lake? Name sparsely populated areas of the world?