Revit is a powerful architectural design software that allows you to create detailed 3D models of buildings and structures. Viewing your designs in 3D can provide a more realistic and immersive experience, allowing you to better understand the spatial relationships and overall design. Here's how you can easily view your designs in 3D in Revit:

1. Open your Revit project and navigate to the view you want to see in 3D.

2. Click on the 'View' tab in the top menu and select '3D View' from the dropdown options.

3. You can use the navigation tools to manipulate the 3D view. The 'Orbit', 'Pan', and 'Zoom' tools allow you to move around and explore your design from different angles.

4. Use the 'Walk' tool to simulate walking through your design, giving you a first-person perspective of the space.

5. The 'Section Box' tool allows you to isolate and focus on specific areas of your design in 3D. This is particularly useful for inspecting interior spaces or specific building elements.

6. You can also create multiple 3D views to showcase different aspects of your design. This can be useful for presentations and client meetings.

Remember to always save your 3D views to easily access them later and communicate your design intent to others. With these simple steps, you can effortlessly navigate and view your designs in 3D using Revit, enhancing your design process and communication with clients and collaborators.