By Sally French, NerdWallet Big hotel brands are adding vacation rental properties to their portfolios, creating new options for large groups and families. Related Articles Travel | 10 things you can only do in (or around) Denver Travel | The deepest hot springs in the world feeds this Colorado wintertime playground Travel | Travel: These cruise ships will make their maiden voyages in 2025 Travel | Discover 10 of Colorado’s best après-ski bars Travel | Keystone is getting a game-changing revamp.